Jackpot 2 LS
A complete standalone ECU, wiring harness, and sensor package designed to control LS-based engine swaps without relying on the factory ECU.
Fully tunable with self-learning fuel control, Jackpot 2 LS gives builders the flexibility to get running quickly and fine-tune deeper when they’re ready.
Jackpot LS (Lite)
3-Year Warranty
30-Day Returns
Secure Payment
The Jackpot 2 LS kits are designed to be compatible with 1997-2014 GM Gen III & Gen IV LS based engines that use either a 58x/4x or a 24x/1x crank & cam pattern. Common compatible engines include LS1, LS2, LS3, LS6, LS7, LS9, and many popular LS swap variants such as 4.8L, 5.3L, and 6.0L LS-based engines. Compatibility is determined by the trigger pattern and engine features, not just the engine nickname, so confirming the crank and cam pattern is one of the best ways to validate fitment.
The Jackpot LS Lite EFI System is a standalone engine management system for 1997–2014 GM Gen III and Gen IV LS-based engines that use 58x/4x or 24x/1x crank and cam trigger patterns. It’s perfect for LS swaps or for upgrading and replacing your factory ECU or existing aftermarket EFI, giving you modern sequential fuel and spark control, wideband closed-loop learning (one sensor included), and the flexibility to support everything from stock street builds to performance combinations when tuned correctly.
Jackpot LS Lite EFI System
Modern EFI control built for real-world LS swaps.
Throttle Note: Jackpot LS Lite supports mechanical cable-operated throttle bodies only. Electronic drive-by-wire throttle bodies are not supported.
Jackpot LS Lite is designed for builders who want a clean, straightforward standalone LS system with a guided setup that gets you running fast, plus the ability to step into deeper tuning when your build demands it. Whether you’re swapping a 5.3 into a classic truck, refreshing an LS3 street car, or building a stronger combo with cam and airflow upgrades, Jackpot LS Lite is built to keep the install clean, the drivability strong, and the control in your hands.
At the heart of the system is Aces’ proven Gen 1 ECU platform, built for stable RPM control, reliable input and output handling, and consistent performance across changing voltage and load conditions. For stock and mild builds, the setup wizard and self-learning fueling strategy help eliminate the intimidation factor of tuning. For performance builds, the free Aces laptop tuning software unlocks full manual control and calibration refinement.
Lite Platform Overview (Gen 1)
Jackpot LS Lite uses Aces’ Gen 1 ECU platform with 10×14 fuel, ignition, and self-learn tables. This structure keeps tuning approachable and effective for the vast majority of street swaps and mild-to-moderate performance builds, with a straightforward learning strategy that can deliver strong drivability without requiring a deep tuning background.
Wideband note (Lite): The system includes one wideband O₂ sensor. You’ll install it on one bank during initial setup. Jackpot LS Lite can run dual wideband later by adding a second wideband sensor (sold separately) and installing a second bung on the opposite bank.
What It Is
Jackpot LS Lite is a standalone ECU system that replaces the stock ECU and wire harness (or an existing aftermarket ECU and harness) to control your LS engine’s fueling and ignition with modern wideband feedback and proven Gen 1 mapping. It supports true sequential fuel and spark on compatible LS trigger patterns, closed-loop wideband control using the included sensor, and tunable strategies for performance features like nitrous and boosted combinations when configured correctly.
Important note: Jackpot LS Lite does not include Gen 2-specific features like fuel level input, and it does not have onboard boost-control hardware to run a boost control solenoid. If you want boost control, use a standalone boost controller. The ECU remains compatible with boosted setups when tuned correctly with the appropriate sensors and strategy.
What It Fits
Jackpot LS Lite is intended for 1997–2014 GM Gen III and Gen IV LS-based engines that use either of the following crank and cam trigger combinations:
- 58x/4x crank and cam pattern
- 24x/1x crank and cam pattern
Common compatible engines include LS1, LS2, LS3, LS6, LS7, LS9, and many popular LS swap variants such as 4.8L, 5.3L, and 6.0L LS-based engines.
Compatibility is determined by the trigger pattern and engine features, not just the engine nickname, so confirming the crank and cam pattern is one of the best ways to validate fitment.
Important Fitment Exclusions
This system is not intended to run active VVT or AFM/DOD applications. These must be removed/deleted if your engine currently has these features and you plan to run the Jackpot LS Lite system on it.
Choose Your System Version
Jackpot LS Lite is offered in configurations based on transmission control requirements.
Throttle Type
Drive-by-Cable (DBC) Only: Jackpot LS Lite supports mechanical cable-operated throttle bodies only.
Transmission Control
Manual Transmission Version: For manual swaps or builds using a separate transmission controller.
Transmission Control Version: For builds where you want the ECU to control a compatible GM automatic transmission.
Supported GM transmissions (Transmission Control versions only):
- 4L60E (1996–2003)
- 4L65E (1996–2003)
- 4L67E (1996–2003)
- 4L80E (1994–2003)
What’s Included With Every Standalone System
Every Jackpot LS Lite standalone system includes the core parts needed to run the engine and begin closed-loop learning, with options to match your build style.
Each standalone system comes with:
- The Jackpot Lite ECU
- A full LS wiring harness
- Your choice of either a handheld touchscreen or a Bluetooth module
- One wideband O₂ sensor (second sensor optional for dual wideband)
- One weld-in O₂ sensor bung (second bung optional if adding a second sensor)
- A coolant temperature sensor
- A MAP sensor
- Additional accessories (installation and sensor-related items)
Harness details (important):
- Harness connector choice is EV1 or EV6 for standalone kits
- If you are buying a kit configuration that is not a standalone kit and comes with injectors, the harness and injectors are EV1 by default
- The harness always includes both 24x and 58x sub-harnesses, so you are covered for either trigger pattern supported by this system
What You Need for Most LS Swaps
Fuel System Requirements
The Jackpot LS Lite system operates between 43–60 PSI fuel pressure. Many LS setups run near 58 PSI nominal. Your pump, regulator strategy, and fuel plumbing must be capable of maintaining stable pressure under load.
While the system is set up for pump gas by default, it can be set up to run E85 via the free PC tuning software.
Note: The system does not support flex fuel, and using ethanol-based fuels may decrease the longevity of certain components.
Exhaust Weld-in Bung Installation (for O₂ sensor)
Wideband closed-loop control requires proper sensor placement. You will need the included wideband bung installed correctly, and the exhaust must be leak-free near the sensor to ensure accurate readings and stable learning behavior. (Refer to the manual for proper installation instructions.)
If you add a second wideband later, install a second bung on the opposite bank and configure dual wideband in the software/settings.
Electrical and Grounding
As with any standalone ECU, clean power and solid grounds are essential. Many drivability and sensor issues are caused by poor grounding, voltage drop, or noisy electrical systems.
If You’re Running Boost or Nitrous
Jackpot LS Lite supports boosted and nitrous-capable setups when configured correctly with appropriate sensors and tuning strategies.
Boost control note (Lite): The ECU does not include onboard boost-control hardware for a boost control solenoid. If you want boost control, use a standalone boost controller. The ECU can still be tuned to properly fuel and spark-manage a boosted engine combination when configured correctly.
What It Supports (Aftermarket and Stock Compatibility)
Jackpot LS Lite is designed to work with common OEM and aftermarket LS swap components (excluding early LS sensors), as long as the combination fits the supported trigger patterns and does not require active VVT or AFM/DOD control.
Key Features at a Glance
- Wideband O₂ closed-loop control and learning (one sensor included; dual wideband capable with an optional second sensor)
- 8 injector drivers and 8 coil outputs for V8 sequential control
- Sequential fuel and spark with individual cylinder trims
- Boost- and nitrous-capable strategies when configured correctly (boost control handled via standalone controller)
- MAP sensor support for enhanced applications when configured appropriately
- Dual knock sensor control for real-time safety and timing optimization
- Rev limiter and 2-stage limiter (launch control)
- Dual fan control outputs for swap-friendly cooling control
- Supports both 58x/4x and 24x/1x crank/cam trigger combinations
- Free laptop software for advanced manual tuning and calibration refinement
- Seamless integration with Aces accessories (handhelds, digital dashes, CAN modules, and transmission control solutions where applicable)
Installation Expectations
Most installs can be completed in a little over a weekend when the fuel system plan is solid, the wideband bung is installed properly, and wiring is routed cleanly. More complex builds, such as transmission control setups, custom dash integrations, or high-power boosted combinations, will require additional time and setup.
A simple first-start checklist always helps: verify fuel pressure, verify grounds and voltage stability, confirm trigger pattern selection, confirm injector and ignition configuration, start and warm up, then allow closed-loop learning to begin.
Setup and Tuning Experience
Jackpot LS Lite is built to be approachable for first-time EFI builders without limiting experienced tuners.
Guided Setup (Handheld or Bluetooth)
After the install, initial setup is straightforward. Using the included handheld touchscreen (or the Bluetooth module if that’s the option you choose), you’ll run through the setup wizard and answer a few basic questions about your engine and configuration, such as cam type, ignition/timing setup, and other core inputs the ECU needs to start safely and learn correctly.
The wizard process is the same whether your build is stock or aggressive. Self-learning is intended for stock to mild combinations and is excellent for daily driving, cruising, and normal load transitions. Wide-open throttle pulls, dyno tuning, and higher-risk operation (especially with aggressive combinations or power adders) should be handled with manual tuning using the free laptop software.
The handheld or Bluetooth module is needed for initial setup, adjustments, and monitoring, but it does not need to remain plugged in once the system is configured and running correctly. Think of it as your setup and control interface: use it to configure, make changes, and view live sensor data whenever you want.
For stock and mild applications, the guided setup wizard and self-learning fueling strategy help deliver quick startup and strong drivability with minimal tuning complexity. Once the engine reaches operating temperature and transitions into closed loop, the system begins learning fueling in real time. After a few drive cycles, fueling accuracy and response continue to improve, and when you are satisfied with the results, you can lock the calibration.
For performance builds, the included USB cable and Aces’ free laptop tuning software give you full manual control, so you can confidently dial in aggressive cam profiles, power adders, and race-focused combinations with complete authority.
Takeaway
The Jackpot LS Lite EFI System is built for real swaps and real builders. It delivers fast guided setup for simple street builds and proven standalone control that can scale into deeper tuning when you need it, while keeping compatibility and install requirements clear so you can buy confidently and build without surprises.
Bundle & save 5% automatically when you purchase a Fuel Kit, Top End Kit, or Master Kit!
1. Standalone Kits
Perfect if you already have a high-pressure fuel system (43 PSI+), a manifold, throttle body, and injectors for your LS or Hemi engine.
Includes the following:
- ECU
- Handheld or Bluetooth Module
- Full Harness
- Sensors
- Accessories
2. Fuel Kits
Perfect if you just need the engine management system and a fuel delivery system.
Includes the following:
- A complete Standalone Kit
- A Fuel Delivery System of your choosing
3. Top End Kits
Includes the following:
- A complete Standalone Kit
- An intake manifold of your choosing
- A throttle body of your choosing (options depend on the manifold)
- 8 injectors
4. Master Kits
Includes the following:
- A complete Standalone Kit
- A Fuel Delivery System of your choosing
- An intake manifold of your choosing
- A throttle body (options depend on the manifold)
- 8 injectors
Product Info
Overview
The Jackpot LS Lite EFI System is a standalone engine management system for 1997–2014 GM Gen III and Gen IV LS-based engines that use 58x/4x or 24x/1x crank and cam trigger patterns. It’s perfect for LS swaps or for upgrading and replacing your factory ECU or existing aftermarket EFI, giving you modern sequential fuel and spark control, wideband closed-loop learning (one sensor included), and the flexibility to support everything from stock street builds to performance combinations when tuned correctly.
Jackpot LS Lite EFI System
Modern EFI control built for real-world LS swaps.
Throttle Note: Jackpot LS Lite supports mechanical cable-operated throttle bodies only. Electronic drive-by-wire throttle bodies are not supported.
Jackpot LS Lite is designed for builders who want a clean, straightforward standalone LS system with a guided setup that gets you running fast, plus the ability to step into deeper tuning when your build demands it. Whether you’re swapping a 5.3 into a classic truck, refreshing an LS3 street car, or building a stronger combo with cam and airflow upgrades, Jackpot LS Lite is built to keep the install clean, the drivability strong, and the control in your hands.
At the heart of the system is Aces’ proven Gen 1 ECU platform, built for stable RPM control, reliable input and output handling, and consistent performance across changing voltage and load conditions. For stock and mild builds, the setup wizard and self-learning fueling strategy help eliminate the intimidation factor of tuning. For performance builds, the free Aces laptop tuning software unlocks full manual control and calibration refinement.
Lite Platform Overview (Gen 1)
Jackpot LS Lite uses Aces’ Gen 1 ECU platform with 10×14 fuel, ignition, and self-learn tables. This structure keeps tuning approachable and effective for the vast majority of street swaps and mild-to-moderate performance builds, with a straightforward learning strategy that can deliver strong drivability without requiring a deep tuning background.
Wideband note (Lite): The system includes one wideband O₂ sensor. You’ll install it on one bank during initial setup. Jackpot LS Lite can run dual wideband later by adding a second wideband sensor (sold separately) and installing a second bung on the opposite bank.
What It Is
Jackpot LS Lite is a standalone ECU system that replaces the stock ECU and wire harness (or an existing aftermarket ECU and harness) to control your LS engine’s fueling and ignition with modern wideband feedback and proven Gen 1 mapping. It supports true sequential fuel and spark on compatible LS trigger patterns, closed-loop wideband control using the included sensor, and tunable strategies for performance features like nitrous and boosted combinations when configured correctly.
Important note: Jackpot LS Lite does not include Gen 2-specific features like fuel level input, and it does not have onboard boost-control hardware to run a boost control solenoid. If you want boost control, use a standalone boost controller. The ECU remains compatible with boosted setups when tuned correctly with the appropriate sensors and strategy.
What It Fits
Jackpot LS Lite is intended for 1997–2014 GM Gen III and Gen IV LS-based engines that use either of the following crank and cam trigger combinations:
- 58x/4x crank and cam pattern
- 24x/1x crank and cam pattern
Common compatible engines include LS1, LS2, LS3, LS6, LS7, LS9, and many popular LS swap variants such as 4.8L, 5.3L, and 6.0L LS-based engines.
Compatibility is determined by the trigger pattern and engine features, not just the engine nickname, so confirming the crank and cam pattern is one of the best ways to validate fitment.
Important Fitment Exclusions
This system is not intended to run active VVT or AFM/DOD applications. These must be removed/deleted if your engine currently has these features and you plan to run the Jackpot LS Lite system on it.
Choose Your System Version
Jackpot LS Lite is offered in configurations based on transmission control requirements.
Throttle Type
Drive-by-Cable (DBC) Only: Jackpot LS Lite supports mechanical cable-operated throttle bodies only.
Transmission Control
Manual Transmission Version: For manual swaps or builds using a separate transmission controller.
Transmission Control Version: For builds where you want the ECU to control a compatible GM automatic transmission.
Supported GM transmissions (Transmission Control versions only):
- 4L60E (1996–2003)
- 4L65E (1996–2003)
- 4L67E (1996–2003)
- 4L80E (1994–2003)
What’s Included With Every Standalone System
Every Jackpot LS Lite standalone system includes the core parts needed to run the engine and begin closed-loop learning, with options to match your build style.
Each standalone system comes with:
- The Jackpot Lite ECU
- A full LS wiring harness
- Your choice of either a handheld touchscreen or a Bluetooth module
- One wideband O₂ sensor (second sensor optional for dual wideband)
- One weld-in O₂ sensor bung (second bung optional if adding a second sensor)
- A coolant temperature sensor
- A MAP sensor
- Additional accessories (installation and sensor-related items)
Harness details (important):
- Harness connector choice is EV1 or EV6 for standalone kits
- If you are buying a kit configuration that is not a standalone kit and comes with injectors, the harness and injectors are EV1 by default
- The harness always includes both 24x and 58x sub-harnesses, so you are covered for either trigger pattern supported by this system
What You Need for Most LS Swaps
Fuel System Requirements
The Jackpot LS Lite system operates between 43–60 PSI fuel pressure. Many LS setups run near 58 PSI nominal. Your pump, regulator strategy, and fuel plumbing must be capable of maintaining stable pressure under load.
While the system is set up for pump gas by default, it can be set up to run E85 via the free PC tuning software.
Note: The system does not support flex fuel, and using ethanol-based fuels may decrease the longevity of certain components.
Exhaust Weld-in Bung Installation (for O₂ sensor)
Wideband closed-loop control requires proper sensor placement. You will need the included wideband bung installed correctly, and the exhaust must be leak-free near the sensor to ensure accurate readings and stable learning behavior. (Refer to the manual for proper installation instructions.)
If you add a second wideband later, install a second bung on the opposite bank and configure dual wideband in the software/settings.
Electrical and Grounding
As with any standalone ECU, clean power and solid grounds are essential. Many drivability and sensor issues are caused by poor grounding, voltage drop, or noisy electrical systems.
If You’re Running Boost or Nitrous
Jackpot LS Lite supports boosted and nitrous-capable setups when configured correctly with appropriate sensors and tuning strategies.
Boost control note (Lite): The ECU does not include onboard boost-control hardware for a boost control solenoid. If you want boost control, use a standalone boost controller. The ECU can still be tuned to properly fuel and spark-manage a boosted engine combination when configured correctly.
What It Supports (Aftermarket and Stock Compatibility)
Jackpot LS Lite is designed to work with common OEM and aftermarket LS swap components (excluding early LS sensors), as long as the combination fits the supported trigger patterns and does not require active VVT or AFM/DOD control.
Key Features at a Glance
- Wideband O₂ closed-loop control and learning (one sensor included; dual wideband capable with an optional second sensor)
- 8 injector drivers and 8 coil outputs for V8 sequential control
- Sequential fuel and spark with individual cylinder trims
- Boost- and nitrous-capable strategies when configured correctly (boost control handled via standalone controller)
- MAP sensor support for enhanced applications when configured appropriately
- Dual knock sensor control for real-time safety and timing optimization
- Rev limiter and 2-stage limiter (launch control)
- Dual fan control outputs for swap-friendly cooling control
- Supports both 58x/4x and 24x/1x crank/cam trigger combinations
- Free laptop software for advanced manual tuning and calibration refinement
- Seamless integration with Aces accessories (handhelds, digital dashes, CAN modules, and transmission control solutions where applicable)
Installation Expectations
Most installs can be completed in a little over a weekend when the fuel system plan is solid, the wideband bung is installed properly, and wiring is routed cleanly. More complex builds, such as transmission control setups, custom dash integrations, or high-power boosted combinations, will require additional time and setup.
A simple first-start checklist always helps: verify fuel pressure, verify grounds and voltage stability, confirm trigger pattern selection, confirm injector and ignition configuration, start and warm up, then allow closed-loop learning to begin.
Setup and Tuning Experience
Jackpot LS Lite is built to be approachable for first-time EFI builders without limiting experienced tuners.
Guided Setup (Handheld or Bluetooth)
After the install, initial setup is straightforward. Using the included handheld touchscreen (or the Bluetooth module if that’s the option you choose), you’ll run through the setup wizard and answer a few basic questions about your engine and configuration, such as cam type, ignition/timing setup, and other core inputs the ECU needs to start safely and learn correctly.
The wizard process is the same whether your build is stock or aggressive. Self-learning is intended for stock to mild combinations and is excellent for daily driving, cruising, and normal load transitions. Wide-open throttle pulls, dyno tuning, and higher-risk operation (especially with aggressive combinations or power adders) should be handled with manual tuning using the free laptop software.
The handheld or Bluetooth module is needed for initial setup, adjustments, and monitoring, but it does not need to remain plugged in once the system is configured and running correctly. Think of it as your setup and control interface: use it to configure, make changes, and view live sensor data whenever you want.
For stock and mild applications, the guided setup wizard and self-learning fueling strategy help deliver quick startup and strong drivability with minimal tuning complexity. Once the engine reaches operating temperature and transitions into closed loop, the system begins learning fueling in real time. After a few drive cycles, fueling accuracy and response continue to improve, and when you are satisfied with the results, you can lock the calibration.
For performance builds, the included USB cable and Aces’ free laptop tuning software give you full manual control, so you can confidently dial in aggressive cam profiles, power adders, and race-focused combinations with complete authority.
Takeaway
The Jackpot LS Lite EFI System is built for real swaps and real builders. It delivers fast guided setup for simple street builds and proven standalone control that can scale into deeper tuning when you need it, while keeping compatibility and install requirements clear so you can buy confidently and build without surprises.
Specs
Jackpot LS (Lite) Specifications
Additional specs are not currently listed for this product.
Resource Documents
For additional manuals, diagrams, measurements, and more, check out our documents page in our Resource Center by clicking here.
What's in the box?
The Jackpot LS Lite EFI System is a standalone engine management system for 1997–2014 GM Gen III and Gen IV LS-based engines that use 58x/4x or 24x/1x crank and cam trigger patterns. It’s perfect for LS swaps or for upgrading and replacing your factory ECU or existing aftermarket EFI, giving you modern sequential fuel and spark control, wideband closed-loop learning (one sensor included), and the flexibility to support everything from stock street builds to performance combinations when tuned correctly.
Jackpot LS Lite EFI System
Modern EFI control built for real-world LS swaps.
Throttle Note: Jackpot LS Lite supports mechanical cable-operated throttle bodies only. Electronic drive-by-wire throttle bodies are not supported.
Jackpot LS Lite is designed for builders who want a clean, straightforward standalone LS system with a guided setup that gets you running fast, plus the ability to step into deeper tuning when your build demands it. Whether you’re swapping a 5.3 into a classic truck, refreshing an LS3 street car, or building a stronger combo with cam and airflow upgrades, Jackpot LS Lite is built to keep the install clean, the drivability strong, and the control in your hands.
At the heart of the system is Aces’ proven Gen 1 ECU platform, built for stable RPM control, reliable input and output handling, and consistent performance across changing voltage and load conditions. For stock and mild builds, the setup wizard and self-learning fueling strategy help eliminate the intimidation factor of tuning. For performance builds, the free Aces laptop tuning software unlocks full manual control and calibration refinement.
Lite Platform Overview (Gen 1)
Jackpot LS Lite uses Aces’ Gen 1 ECU platform with 10×14 fuel, ignition, and self-learn tables. This structure keeps tuning approachable and effective for the vast majority of street swaps and mild-to-moderate performance builds, with a straightforward learning strategy that can deliver strong drivability without requiring a deep tuning background.
Wideband note (Lite): The system includes one wideband O₂ sensor. You’ll install it on one bank during initial setup. Jackpot LS Lite can run dual wideband later by adding a second wideband sensor (sold separately) and installing a second bung on the opposite bank.
What It Is
Jackpot LS Lite is a standalone ECU system that replaces the stock ECU and wire harness (or an existing aftermarket ECU and harness) to control your LS engine’s fueling and ignition with modern wideband feedback and proven Gen 1 mapping. It supports true sequential fuel and spark on compatible LS trigger patterns, closed-loop wideband control using the included sensor, and tunable strategies for performance features like nitrous and boosted combinations when configured correctly.
Important note: Jackpot LS Lite does not include Gen 2-specific features like fuel level input, and it does not have onboard boost-control hardware to run a boost control solenoid. If you want boost control, use a standalone boost controller. The ECU remains compatible with boosted setups when tuned correctly with the appropriate sensors and strategy.
What It Fits
Jackpot LS Lite is intended for 1997–2014 GM Gen III and Gen IV LS-based engines that use either of the following crank and cam trigger combinations:
- 58x/4x crank and cam pattern
- 24x/1x crank and cam pattern
Common compatible engines include LS1, LS2, LS3, LS6, LS7, LS9, and many popular LS swap variants such as 4.8L, 5.3L, and 6.0L LS-based engines.
Compatibility is determined by the trigger pattern and engine features, not just the engine nickname, so confirming the crank and cam pattern is one of the best ways to validate fitment.
Important Fitment Exclusions
This system is not intended to run active VVT or AFM/DOD applications. These must be removed/deleted if your engine currently has these features and you plan to run the Jackpot LS Lite system on it.
Choose Your System Version
Jackpot LS Lite is offered in configurations based on transmission control requirements.
Throttle Type
Drive-by-Cable (DBC) Only: Jackpot LS Lite supports mechanical cable-operated throttle bodies only.
Transmission Control
Manual Transmission Version: For manual swaps or builds using a separate transmission controller.
Transmission Control Version: For builds where you want the ECU to control a compatible GM automatic transmission.
Supported GM transmissions (Transmission Control versions only):
- 4L60E (1996–2003)
- 4L65E (1996–2003)
- 4L67E (1996–2003)
- 4L80E (1994–2003)
What’s Included With Every Standalone System
Every Jackpot LS Lite standalone system includes the core parts needed to run the engine and begin closed-loop learning, with options to match your build style.
Each standalone system comes with:
- The Jackpot Lite ECU
- A full LS wiring harness
- Your choice of either a handheld touchscreen or a Bluetooth module
- One wideband O₂ sensor (second sensor optional for dual wideband)
- One weld-in O₂ sensor bung (second bung optional if adding a second sensor)
- A coolant temperature sensor
- A MAP sensor
- Additional accessories (installation and sensor-related items)
Harness details (important):
- Harness connector choice is EV1 or EV6 for standalone kits
- If you are buying a kit configuration that is not a standalone kit and comes with injectors, the harness and injectors are EV1 by default
- The harness always includes both 24x and 58x sub-harnesses, so you are covered for either trigger pattern supported by this system
What You Need for Most LS Swaps
Fuel System Requirements
The Jackpot LS Lite system operates between 43–60 PSI fuel pressure. Many LS setups run near 58 PSI nominal. Your pump, regulator strategy, and fuel plumbing must be capable of maintaining stable pressure under load.
While the system is set up for pump gas by default, it can be set up to run E85 via the free PC tuning software.
Note: The system does not support flex fuel, and using ethanol-based fuels may decrease the longevity of certain components.
Exhaust Weld-in Bung Installation (for O₂ sensor)
Wideband closed-loop control requires proper sensor placement. You will need the included wideband bung installed correctly, and the exhaust must be leak-free near the sensor to ensure accurate readings and stable learning behavior. (Refer to the manual for proper installation instructions.)
If you add a second wideband later, install a second bung on the opposite bank and configure dual wideband in the software/settings.
Electrical and Grounding
As with any standalone ECU, clean power and solid grounds are essential. Many drivability and sensor issues are caused by poor grounding, voltage drop, or noisy electrical systems.
If You’re Running Boost or Nitrous
Jackpot LS Lite supports boosted and nitrous-capable setups when configured correctly with appropriate sensors and tuning strategies.
Boost control note (Lite): The ECU does not include onboard boost-control hardware for a boost control solenoid. If you want boost control, use a standalone boost controller. The ECU can still be tuned to properly fuel and spark-manage a boosted engine combination when configured correctly.
What It Supports (Aftermarket and Stock Compatibility)
Jackpot LS Lite is designed to work with common OEM and aftermarket LS swap components (excluding early LS sensors), as long as the combination fits the supported trigger patterns and does not require active VVT or AFM/DOD control.
Key Features at a Glance
- Wideband O₂ closed-loop control and learning (one sensor included; dual wideband capable with an optional second sensor)
- 8 injector drivers and 8 coil outputs for V8 sequential control
- Sequential fuel and spark with individual cylinder trims
- Boost- and nitrous-capable strategies when configured correctly (boost control handled via standalone controller)
- MAP sensor support for enhanced applications when configured appropriately
- Dual knock sensor control for real-time safety and timing optimization
- Rev limiter and 2-stage limiter (launch control)
- Dual fan control outputs for swap-friendly cooling control
- Supports both 58x/4x and 24x/1x crank/cam trigger combinations
- Free laptop software for advanced manual tuning and calibration refinement
- Seamless integration with Aces accessories (handhelds, digital dashes, CAN modules, and transmission control solutions where applicable)
Installation Expectations
Most installs can be completed in a little over a weekend when the fuel system plan is solid, the wideband bung is installed properly, and wiring is routed cleanly. More complex builds, such as transmission control setups, custom dash integrations, or high-power boosted combinations, will require additional time and setup.
A simple first-start checklist always helps: verify fuel pressure, verify grounds and voltage stability, confirm trigger pattern selection, confirm injector and ignition configuration, start and warm up, then allow closed-loop learning to begin.
Setup and Tuning Experience
Jackpot LS Lite is built to be approachable for first-time EFI builders without limiting experienced tuners.
Guided Setup (Handheld or Bluetooth)
After the install, initial setup is straightforward. Using the included handheld touchscreen (or the Bluetooth module if that’s the option you choose), you’ll run through the setup wizard and answer a few basic questions about your engine and configuration, such as cam type, ignition/timing setup, and other core inputs the ECU needs to start safely and learn correctly.
The wizard process is the same whether your build is stock or aggressive. Self-learning is intended for stock to mild combinations and is excellent for daily driving, cruising, and normal load transitions. Wide-open throttle pulls, dyno tuning, and higher-risk operation (especially with aggressive combinations or power adders) should be handled with manual tuning using the free laptop software.
The handheld or Bluetooth module is needed for initial setup, adjustments, and monitoring, but it does not need to remain plugged in once the system is configured and running correctly. Think of it as your setup and control interface: use it to configure, make changes, and view live sensor data whenever you want.
For stock and mild applications, the guided setup wizard and self-learning fueling strategy help deliver quick startup and strong drivability with minimal tuning complexity. Once the engine reaches operating temperature and transitions into closed loop, the system begins learning fueling in real time. After a few drive cycles, fueling accuracy and response continue to improve, and when you are satisfied with the results, you can lock the calibration.
For performance builds, the included USB cable and Aces’ free laptop tuning software give you full manual control, so you can confidently dial in aggressive cam profiles, power adders, and race-focused combinations with complete authority.
Takeaway
The Jackpot LS Lite EFI System is built for real swaps and real builders. It delivers fast guided setup for simple street builds and proven standalone control that can scale into deeper tuning when you need it, while keeping compatibility and install requirements clear so you can buy confidently and build without surprises.
Jackpot LS (Lite) Specifications
Additional specs are not currently listed for this product.
For additional manuals, diagrams, measurements, and more, check out our documents page in our Resource Center by clicking here.
Computing Power
Self Learning & Fully Tunable
Not a tuning wiz? We provide the wizard, so you don't have to be. With Jackpot 2's self-learning* functionality, just answer a few basic questions in the startup wizard, and then the ECU takes care of the rest. After about 30-60 minutes of idling and drive time, the system will build its own tune so you don't have to.
For advanced users and boost control setup, you can use our free tuning software to access even more customizable settings.
*Self-learning works best for stock-mild applications. For more aggressive applications and even some stock-mild applications, manual tuning is recommended.
Boost Control
Looking to boost your ride? While all of our other second-generation EFI systems support single solenoid control, the Jackpot 2 goes above and beyond with dual Mac 3-port solenoid control*. Never worry about dangerous overboost again–our safety features will detect it and drop pressure automatically. Our self-learning features will even pull timing as it sees boost, for smooth, safe acceleration. Of course, you can always use our advanced tuning software to take it to the next level if you have the chops.
*Boost Control is currently disabled in the firmware, but will be added via a free firmware update in the summer of 2026.
Transmission Control
While manual transmission compatibility comes with each of the Jackpot 2 LS systems, select versions also include trans control for the following GM 4-speed transmissions:
- 4L60E ('96-'03)
- 4L65E ('96-'03)
- 4L67E ('96-'03)
- 4L80E ('94-'03)
ETB Control
Whether you need drive-by-cable, drive-by-wire, or both in one, the Jackpot LS EFI system has you covered.
See the compatibility list here.
** Select systems include sub-harnesses for both 6 and 8-pin pedals.
Additional Control Items
Peace of mind is priceless. Well, it's cheaper than a destroyed engine at least. With Knock Control on the Jackpot 2, you can rest assured that you have a last line of defense against dangerous knock. Never again worry about a bad batch of fuel or imperfections in your tune killing your ride without warning– Aces has your back.
For those looking for optimal launches, whether at the track or the red light, the Jackpot 2 comes with both fuel-cut and spark-cut 2-step rev limiters. These are fully selectable and configurable in the handheld or PC software.
Double fan control = double the cooling power. The Jackpot ECU can easily handle a dual radiator fan setup to keep your engine frosty.
24x & 58x Reluctor Wheel
Whether your LS engine is 24x or 58x, the Jackpot 2 gets the job done. It comes packaged with wiring harnesses for both variations, and can be easily configured for compatibillity with either reluctor wheel type.
Pre-terminated EV1/EV6
Whether your LS engine has EV1 or EV6 connectors, Aces has you covered. Our wiring harnesses come pre-terminated with the connectors of your choice, so you don't have to worry about any fiddly splicing.
2 WBO2 Sensors
The Jackpot LS system utilizes two WBO2 sensors to read each bank of your V8 engine. Dual wide-band sensors allow precise calibration of each cylinder bank, optimizing performance and allowing more thorough tuning of your engine without any compromises.
Fuel Level
Worried about losing your fuel gauge to an aftermarket EFI setup? Don't be. With your Aces Handheld Controller or app, you'll be able to see your fuel level at all times.
How do I set up and program my system?
Interface Options
Our EFI systems are self-learning for most stock-to-mild engine builds. You’ll use one of the included interface modules (depending on the option selected at purchase) to complete the initial setup and make adjustments on the fly. The startup wizard will prompt you with 6–12 setup questions, after which the self-learn feature takes over.
Additional fine-tuning may be required later, depending on your specific build.
Bluetooth Module
Compatible with Android and iOS devices and plugs into the CAN connection on the main harness.
5" Handheld (3rd Gen)
- Capacitive touch screen
- 64-bit processor
- 1280x720 resolution
- Cable connection via main harness
8" Handheld (1st Gen)
- Capacitive touch screen
- 64-bit processor
- 1280x800 resolution
- Wifi chip for software updates via the internet*
- Cable connection via the main harness
*Feature will be available via a free firmware update in the Summer of 2026
Bundle & save 5% automatically when you purchase a Fuel Kit, Top End Kit, or Master Kit!
1. Standalone Kits
Perfect if you already have a high-pressure fuel system (43 PSI+), a manifold, throttle body, and injectors for your LS or Hemi engine.
Includes the following:
- ECU
- Handheld or Bluetooth Module
- Full Harness
- Sensors
- Accessories
2. Fuel Kits
Perfect if you just need the engine management system and a fuel delivery system.
Includes the following:
- A complete Standalone Kit
- A Fuel Delivery System of your choosing
3. Top End Kits
Includes the following:
- A complete Standalone Kit
- An intake manifold of your choosing
- A throttle body of your choosing (options depend on the manifold)
- 8 injectors
4. Master Kits
Includes the following:
- A complete Standalone Kit
- A Fuel Delivery System of your choosing
- An intake manifold of your choosing
- A throttle body (options depend on the manifold)
- 8 injectors
You are currently viewing the standalone system page. For complete kits with additional accessories, check out these options below!
Most common questions
Quick answers to our most common queries for this product.
The Jackpot LS (Lite) are designed to work with most stock or aftermarket ignition components. They will work with most tachometers and are compatible with Dakota Digital dashes using their Aces BIM Module (BIM-EFI-1).
Self-tuning is a common term used among aftermarket EFI companies, but we prefer the term "self-learning" as that is more accurate, even for our competitors who advertise "self-tuning."
Our systems are designed to self-learn the fuel MAPs and work best for stock-mild builds. Some mild builds and anything beyond that would require manual tuning, of which the system is fully capable. Additional features like nitrous and boost are also considered beyond stock and require manual adjustments to enable and configure these kinds of features.
Yes! You can make many changes using the Bluetooth or handheld interface, and we also offer a free PC app for more advanced tuning.
Yes to both! The Jackpot LS (Lite) are compatible with both blow-through, draw-through, and nitrous applications and are also compatible with E85 Fuels. The Jackpot LS (Lite)' MAP sensor can be scaled for up to 26 lbs of boost and can be set to retard timing.
Note that for boost, the system is compatible, but cannot control the boost. You will need to use a separate controller for things such as wastegate control or solenoid activation. Use of these features will require manual tuning.
Product comparison
See the primary differences between the Jackpot LS Lite and the Jackpot 2 LS.
Gen 2
Gen 1
31x31 resolution in the fuel, VE, and self-learn tables for each bank.
10x14 resolution in the fuel, VE, and self-learn tables.
Yes
No
Integrated Boost Control with Dual Solenoid Control.*
*Boost Control is currently disabled in the firmware, but will be added via a free firmware update in the summer of 2026.
Boost Compatible, but no integrated boost control.
Utilizes two O2 sensors. One for each bank.
Utilizes one O2 sensor
Uses the Aces Power Distribution Module by default
Has relays built in for the fuel pump and fans
After sitting on the phone over an hour James got my situation resolved and had great customer service and patience to get my order correct
It’s not installed yet, however all the components are very super nice quality. Very excited.
Great price with the Black Friday deal and fast shipping. Everything was packaged really nice but still working on the motor so I haven’t installed anything yet.
Have had my jackpot system for a few months now. And I can definitely say this system is great for its price!! I like the easy install, with everything labeled its kinda hard to mess up i feel. Fired up first try been running on the wizard with some minor adjustment on the handheld. I will definitely buy another system when I build another LS.
Before you believe a negative comment on here ask yourself can the person leaving the review follow instructions to install this system one mistake can make it not work correctly and they jump on here with the tech support bs they aren’t going to come to your house and do it for you follow the instructions get it to start and run then tune it doesn’t tune it’s self it’s a good product I’ve had mine nearly 2 years zero issues (I ran mine for a year before I had a remote tune done it ran good you just have to mess with it to get the AFR correct)
Bought my Jackpot just over a year ago & between everyday driving to long distance from Mo. to NC with not one issue. Once a problem did arise after a yr+ time had past (absolutely my fault) I sent in my equipment as asked & got back it back working again. Very helpful across the board from the emails to phone calls to mailing!! Thanks Again
5.3 Topend kit 🤌
So far we haven't gotten this thing sorted out yet. The engine continues to run after the key is turned off.
The PDM looks like a real nice idea but, you have to cut up and modify the wiring harness to connect it. That's not a good way to start out.
love it you can tell you guys put in the time this kit rocks ,the quality is top notch ,the ease of the wiring ,the hardware, the touchscreen,,off of the part have the exact Fitment I was looking for ,,the cherry on top the price , you can tell you do it out of love so thank you!!!!.I have used fi tech ,holley , Edelbrock and your kits hold there own ........!!!! everyone look out ace is the real deal,and now I can compete in some real competitions ty ill send pics soon ps it learned my cam with ease and grate drivability ,the power omg crisp throttle , built ,5.3 cam , ace injection , super t10 4 speed , 3,42 posi 1991 gmcSonoma
One of the easy ways to do a LS swap glad I picked this system high quality looks amazing wiring is a breeze
Don’t waste your time or money working with another system. Installation was very easy and the system had my engine running how it should have with the other management systems I’ve used. Had I known the quality and ease of use of the jackpot system I wouldn’t have been wasted the time or money on anything else. Great job on these kits!
Installed a LS3 6.2 crate motor in a C3 Corvette. Looked at all the options for engine management and landed on the Aces Jackpot LS system. Aces had a compact ECU, dual O2s, DBW, and trans control needed for the build. Main harness is nicely loomed with plenty of length, quality connectors, and all wires are clearly labeled. After plugging in all the sensor, connect 4 wires - pwr, gnd, pump, acc and it’s ready to run. The setup wizard is super easy using the 7” screen. Car started up within seconds on the second crank and settled to my target idle. This system is the best value on the market for an LS swap.
First the product was readily available when competitors was not. It came quickly very nicely boxed with everything labeled. Nice cloth loom. Very descriptive manual and labels. No for the company and their supporters. I got my truck going and headed to PTTS and the guys at the aces tent were amazing in support and helping with tuning. They were not satisfied until we got some issues resolved and it purred all the way home from bowling green to southern Indiana. I can not thank Bradley Woodall enough for his help. Long story short I completely recommend this stuff!!
I have used this kit on my own protiuring car.. a 1968 camaro.. and it has proven to be reliable and easy to use
Installed Jackpot for LS on (2) swaps, 6.0 in Foxbody and 5.3 in OBS truck, both performed well, and can't beat the price - very happy with Aces EFI!
Tony in Berthoud, CO
I got this Jackpot EFI unit to replace the stock Corvette 411 computer that I put into my Datsun 280Z. The ACES computer is nice and small compared to the corvette computer. A few things that I did not like about the system. The wire harness was very long, with these big plugs for the sub harness wires. The big plugs where designed to go in the rear of the engine. I the Datsun there is no room for them in the back because of how close it was to the firewall. I cut the plugs out of the harness and spliced the wires back together.The wire loom that was over the wires was not good quality. I ended up cutting al the loom off and replacing it with better stuff. I included pictures of before and after the better quality loom. The loom was cut short, so at the ends of the wires was any where from 2 to 3 inches of tape to cover up the short loom. The plugs for the coils where not the same as the stock Corvette, so I had to get new ignition coils. Then the injector plugs are EV6 and the stock ones are EV1. They don't have a wire harness for the stock injectors, so I had to get some adapters from Ebay. Those would be nice to have included in the kit or have the option to pick what injectors and coils you are running. the oxygen sensor wires are very long also. I would recommend that the wire harness has the option to come none terminated at the ends fro the people who want the length to be custom to make it all fit and look good.The wires had very big white labels on them. It made it easy to know where they went. But after you plugged them in there was this big label there that I had to cut off. I then wrote with a sharpee on the plugs what they went to.There was another big plug that has all the loose wires on it. Again, I cut that off and then just connected the wires that I need for my setup.
Now for the good:
The instructions are very nice and easy to follow. I like that they included the wiring diagrams for this system, very helpful. The user interface on the touch screen is great. The setup was easy, I just answered a few questions and then the car started right up and ran great.I like the two wide band oxygen sensors that come in the kit. It does take a few more rotations of the engine to start than the Corvette computer. I liked the included rubber mounts for the computer. The kit came with it's own relays and two inline fuses. I got the upgraded 7 inch screen, which is nice. I mounted it to the front of my dash for now while I tune the engine, then I will remove it after that.
Overall this is a great system. I am glad I got it and I will get another one for my next project.
This Jackpot EFI system is great, Thank you.
Bought the jackpot and harness kit for my car. Easy to work with and quality parts ! 5 stars !
This is truly a great system very easy to install and the wizard is so easy to understand if I can do it anyone can great job! Aces you guys are awesome and the customer service and tech team are so helpful, if you need a system Go Aces !!!!
