aRacer Speedtek AF3 Autotuning Wideband Module

The aRacer AF3 Wideband Module can be used in conjunction with your aRacer MiniX or Super X ECU in order to provide autotuning capability!

aRacer AF3 Professional Wideband O2 AFR Module now comes included with a Bosch LSU 4.9 wideband O2 Sensor! aRacer has significantly improved the design and function of the AF2 to give it a much more stable and quicker AFR reading. They have also built the harness so that it would plugin directly to the aRacer ECU without the need to purchase any other splitter or additional cables. By doing so, this has made the installation much easier and simpler, which the need to tuck away unused connectors and lengthy wires from the splitters. 

Professional Air Fuel Ratio Module AF3  

1. Compatible with BOSCH LSU 4.9 and LSU 4.2 sensors
2. High exhaust temperature warning (>800°C)
3. Advanced O2 heater control & over-temperature protection
4. Enhanced digital transmission speed by 10%
5. Supports ECU & BOSCH O2 sensor fault code detection
6. Compatible with ethanol-blended fuels: E30, E50, E85
7. Only supports Super X & Mini X ECU, software version must be S120 or above
   

NOTE: A 18mm o2 sensor bung is required on the exhaust header. If your exhaust header pipe does not have an available o2 bung, then you would need to add one. Please see the related items below for the stainless steel o2 bung and cap.