The Inline Wideband UEGO gives all the benefits of the AEM Wideband Air/Fuel Gauges to those who do not require or want an additional gauge in the car. Perfect for datalogging, engine management systems or racing applications where a gauge is not desired. Simple wiring and installation, the controller is weather proof and can be mounted anywhere in or outside the vehicle.


The system features a Bosch sensor with an accuracy of .1 AFR, making it among the fastest and most accurate widebands available. Quick and easy installation and use for applications that do not require a display gauge.

– Ideal AFR monitoring tool for EFI and carbureted applications, and engine dynamometers

– Does not oscillate AFR reading like narrow band sensors

– No laptop required for monitoring!

– Bosch sensor included

– Accurate to 0.1 AFR

– 0-5v analog output included for use with data loggers and virtually any engine management system

– Detects AFR sensor problems and outputs error values which can be used to deactivate feedback

– Reads Gasoline AFR values from 8.5 to 18:1 AFR

– Reads E85 AFR from values 5.7 to 12:1 AFR

– Reads Ethanol AFR values from 5.2 to 11:1 AFR

– Reads Methanol AFR values from 3.7 to 7.8:1

– Reads Lambda values from 0.58 to 1.22 AFR