AEM Electronics 52mm Gauge Type Wideband UEGO Controller

SKU: 0J2N4 | MPN:  30-4110
In stock
Sale price$211.99 USD

AEM Wideband UEGO controller monitors air/fuel ratios during tuning to prevent lean fuel mixtures that can lead to engine damage. This unit combines AEM's single-channel wideband UEGO controller and gauge display into one compact unit. This gauge type controller features a digital LED display and sweeping LED needle that changes colors as the AFR changes from rich to lean. The gauge fits in any 52mm (2 1/16") housing and can be mounted virtually anywhere in the cabin. Some of the key features are:

  • AFR monitoring tool for EFI and carbureted applications and engine dynometers.
  • No laptop required for monitoring
  • Includes Bosch O2 Sensor
  • Accurate to 0.1 AFR
  • Capable of reading in AFR or Lambda with a flick of a switch
  • 24 Color Coded LED display lights for immediate reference to engine's AFR or Lambda ratio
  • Integrated three-digit display shows AFR or Lambda in real time
  • Serial data stream included for output of AFR (RS 232)
  • User programmable 0-5v analog output included for use with data loggers or any engine management system


Vehicle Fitments:

Year Make Model Submodel
2006 - 2007 Subaru Impreza 2.5i, WRX TR, WRX Limited
2005 - 2007 Subaru Impreza Outback Sport
2002 - 2004 Subaru Impreza Outback, TS
2002 - 2005 Subaru Impreza RS
2002 - 2007 Subaru Impreza WRX
2004 - 2007 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI Limited

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