Aracer AF3 Professional Wideband AFR Module LSU 4.9 / 4.2 O2

 aRacer AF3 Professional Wideband O2 AFR Module is the new and improved wideband AFR module that now comes included with a Bosch LSU wideband oxygen sensor! The AF3 is a better upgrade over the older AF2 model! The AF3 is the latest and greatest AFR module from aRacer! 10% faster communication speed, supports the use of alcohol and gasoline fuel type (E30, E50, E85), 

FEATURES:

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

NOTE: 

• Do not use fake or imitation Bosch o2 sensors, it will damage the module.
• ECU software must be updated to be S120 or above. Older version of the software will not recognize the new module. 

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.