For fuel specific display, especially for E85 fuel, the AEM UEGO 30-4110 is more suitable. Whatever the fuel you will be running, the AFR values will always be displayed in 'gasoline' mode (Lambda 1 = 14.7). Bosch 4.9 LSU wideband sensor and weld-in bung.

The sensors are not interchangeable between the two gauge controllers in any way, including changing connectors on the gauges. The 30-4110’s 4.9 LSU sensor uses a different connector than the connector used with the 4.2 LSU sensors included with the original, discontinued 30-4100 gauge controller. The 4.9 LSU sensor uses a different connector than the connector used with the 4.2 LSU sensors included with the original 30-4100 gauge controller. The 4.9 LSU sensor features the same fuel compatibility as the 4.2 LSU and NEVER requires free-air calibration when used with AEM’s 30-4110 Wideband UEGO AFR Gauge. The 4.9 LSU sensor features the same fuel compatibility as the 4.2 LSU and NEVER requires free-air calibration when used with AEMs Wideband UEGO AFR Gauge. The Bosch 4.9 LSU sensor used in the 30-4110 AEM Wideband UEGO AFR Controller Gauge has a faster light off time and draws less current than the 4.2 LSU sensor used with AEM’s discontinued 30-4100 Wideband UEGO Controller Gauge. The Bosch UEGO sensor gives the controller its speed and accuracy. Each gauge comes with black and silver bezels and black and white faceplates for multiple color combinations and a custom look (a black Lambda faceplate and black and white Air/Fuel Ratio faceplates). All AEM digital gauges feature a 0-5v analog output for use with data loggers and almost any engine management system.

A 52mm (2-1/16') gauge housing ensures that it will fit in most gauge pods and can be remotely mounted virtually anywhere. The World-famous AEM Wideband O2 air/fuel ratio UEGO gauge features a digital LED display and sweeping LED 'needle' that changes colors as AFR changes from rich to lean.

Aem air fuel ratio gauge wiring 4100