AFR Module
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Product Info
Overview
Take the guesswork out of tuning with the Aces AFR Module. Designed for seamless integration with any Aces EFI system or as a standalone wideband system for carbureted engines and other aftermarket EFI setups, it’s a no-brainer for any builder looking to complete their Aces sensor suite.
Built around our proven 4.9 wideband oxygen sensor, this module delivers real-time, highly accurate air-fuel ratio (AFR) data directly to your handheld, giving you precise insight into your engine’s performance.
The Aces AFR Module also enables dual O₂ monitoring on TBI systems that typically use a single sensor, allowing your system to track both banks independently for optimized tuning. It’s equally valuable for carbureted applications where accurate AFR readings are essential for fine-tuning performance and fuel economy.
Available in two configurations:
-
Standalone System: Includes either a handheld display or Bluetooth module for use with non-Aces systems.
-
Aces Add-On Module: Integrates directly with your existing Aces handheld for a streamlined expansion.
Tuning and performance:
Helps ensure the engine is running at the optimal ratio for power or economy.
Diagnostics:
Quickly shows if the engine is running too lean or rich, which prevents damage.
Dual-Channel Monitoring:
Track two independent AFR readings simultaneously for ultimate flexibility.
Fast & Reliable:
Sensor warms up and delivers stable readings in under 20 seconds.
Rugged Design:
Automotive-grade waterproof connectors, IP54-rated housing, vibration tested, and ready for extreme environments.
Fully compatible with all of Aces’ Fuel Injection and Ignition systems that support the Aces CAN network.
Whether you’re an experienced tuner, or setting up your system for the first time, don’t settle for less than the best. Reliability, accuracy, and value: that’s the kind of combination you can only get by betting on Aces.
Specs
AFR Module Specifications
| Specification | Value |
|---|---|
| Product | Air-Fuel Ratio Meter |
| Sensor Compatibility | Bosch LSU 4.9 wideband oxygen sensor |
| Measurement Range | λ = 0.65-10.12 (AFR: 9.55-148.5) |
| O2 Concentration Range | 0%-18.93% |
| Accuracy | ±5% of reading (standard conditions) |
| Response Time | ≤ 20 s (heater ON to stable output) |
| Channel Count | 2 independent channels |
| Operating Voltage | 10.8-16.5 V DC (nominal 12 V) |
| Power Draw (Heater) | ~7.5 W nominal |
| Heater Control | Closed-loop PID via CJ125 (PWM, 200 Hz) |
| Heater Voltage Limit | 12 V continuous, 13 V short-term (≤ 30 s) |
| Communication Interface | CAN 2.0B |
| Baud Rate | 500 kbps |
| Data Output | λ, AFR, sensor status flags |
| Compatible Devices | ECU, diagnostic tools |
| Operating Temperature | -20 °C to +90 °C |
| Storage Temperature | -20 °C to +120 °C |
| Module Housing | IP54 (dust-protected, splash-resistant) |
| Vibration Tolerance | ≤ 300 m/s² peak |
| Connector Type | Automotive-grade waterproof (6-pin) |
| Pinout | 1: APE, 2: IPN, 3: H-, 4: H+, 5: RT, 6: RE+ |
| Insulation Resistance | ≥ 30 MΩ (room temp, heater OFF) |
| Storage Conditions | Dry environment, original packaging, ≤ 2 years |
Resource Documents
For additional manuals, diagrams, measurements, and more, check out our documents page in our Resource Center by clicking here.
What's Included?
Note: This list does not include any add-ons selected above.
Standalone
Aces Add-on
Take the guesswork out of tuning with the Aces AFR Module. Designed for seamless integration with any Aces EFI system or as a standalone wideband system for carbureted engines and other aftermarket EFI setups, it’s a no-brainer for any builder looking to complete their Aces sensor suite.
Built around our proven 4.9 wideband oxygen sensor, this module delivers real-time, highly accurate air-fuel ratio (AFR) data directly to your handheld, giving you precise insight into your engine’s performance.
The Aces AFR Module also enables dual O₂ monitoring on TBI systems that typically use a single sensor, allowing your system to track both banks independently for optimized tuning. It’s equally valuable for carbureted applications where accurate AFR readings are essential for fine-tuning performance and fuel economy.
Available in two configurations:
-
Standalone System: Includes either a handheld display or Bluetooth module for use with non-Aces systems.
-
Aces Add-On Module: Integrates directly with your existing Aces handheld for a streamlined expansion.
Tuning and performance:
Helps ensure the engine is running at the optimal ratio for power or economy.
Diagnostics:
Quickly shows if the engine is running too lean or rich, which prevents damage.
Dual-Channel Monitoring:
Track two independent AFR readings simultaneously for ultimate flexibility.
Fast & Reliable:
Sensor warms up and delivers stable readings in under 20 seconds.
Rugged Design:
Automotive-grade waterproof connectors, IP54-rated housing, vibration tested, and ready for extreme environments.
Fully compatible with all of Aces’ Fuel Injection and Ignition systems that support the Aces CAN network.
Whether you’re an experienced tuner, or setting up your system for the first time, don’t settle for less than the best. Reliability, accuracy, and value: that’s the kind of combination you can only get by betting on Aces.
AFR Module Specifications
| Specification | Value |
|---|---|
| Product | Air-Fuel Ratio Meter |
| Sensor Compatibility | Bosch LSU 4.9 wideband oxygen sensor |
| Measurement Range | λ = 0.65-10.12 (AFR: 9.55-148.5) |
| O2 Concentration Range | 0%-18.93% |
| Accuracy | ±5% of reading (standard conditions) |
| Response Time | ≤ 20 s (heater ON to stable output) |
| Channel Count | 2 independent channels |
| Operating Voltage | 10.8-16.5 V DC (nominal 12 V) |
| Power Draw (Heater) | ~7.5 W nominal |
| Heater Control | Closed-loop PID via CJ125 (PWM, 200 Hz) |
| Heater Voltage Limit | 12 V continuous, 13 V short-term (≤ 30 s) |
| Communication Interface | CAN 2.0B |
| Baud Rate | 500 kbps |
| Data Output | λ, AFR, sensor status flags |
| Compatible Devices | ECU, diagnostic tools |
| Operating Temperature | -20 °C to +90 °C |
| Storage Temperature | -20 °C to +120 °C |
| Module Housing | IP54 (dust-protected, splash-resistant) |
| Vibration Tolerance | ≤ 300 m/s² peak |
| Connector Type | Automotive-grade waterproof (6-pin) |
| Pinout | 1: APE, 2: IPN, 3: H-, 4: H+, 5: RT, 6: RE+ |
| Insulation Resistance | ≥ 30 MΩ (room temp, heater OFF) |
| Storage Conditions | Dry environment, original packaging, ≤ 2 years |
For additional manuals, diagrams, measurements, and more, check out our documents page in our Resource Center by clicking here.
Note: This list does not include any add-ons selected above.