AEM Electronics

AEM 4 Channel Wideband UEGO Controller

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  • Regular price $653.86

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AEM’s 4-Channel Wideband UEGO Controller is a must for racers who want to monitor and/or tune individual cylinder AFR using a standalone engine management system for maximum engine performance and reliability. It allows users to simultaneously monitor individual cylinder Air/Fuel Ratios (AFR) on up to four cylinders and can monitor 8 individual cylinders with the addition of a second unit (up to 12 cylinders by daisy-chaining three units together using AEMnet CAN bus). AEM's optional exhaust backpressure compensation kit allows racers with turbos to mount the sensors pre-turbo for accurate, responsive AFR readings in every cylinder. If you want the absolute best tune and most accurate engine air/fuel ratios there is no substitute for using the 4-Channel Wideband UEGO AFR Controller.

The 4-Channel Wideband UEGO Controller includes one Bosch wideband sensor and one stainless steel stand-off sensor bung.


  • Allows for monitoring of individual cylinder AFRs for maximum engine power and safety
  • Two status lights per sensor for error detection and operating status
  • Pair multiple units together for use on 6, 8, 10 or 12 cylinders
  • Compact (4.8" x 4.55" x 1.44"), weather & shockproof enclosure
  • Accurate to 0.1 AFR
  • One Bosch Wideband UEGO sensor and one stainless weld-in bung included
  • No free air calibration required—ever
  • AEMnet compatible