AEM X-Series Wideband UEGO AFR Gauge

Wideband AEM 30-0300 X-Series

• Analyse your air/fuel ratio
• Compact 52mm design for easy install, 20mm depth
• Includes Bosch 4.9LSU wideband UEGO sensor
• Digital display and LED backight (52 mm)
• 0-5V & RS232 CANbus output for data logging
• Petrol, E85, Ethanol and Methanol compatible
• AEM reference : 30-0300

AEM Digital Wideband UEGO AFR Gauge

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. A 52mm (2-1/16″) gauge housing ensures that it will fit in most gauge pods and can be remotely mounted virtually anywhere. All AEM digital gauges feature a 0-5v analog output for use with data loggers and almost any engine management system. 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).

The Bosch UEGO sensor gives the controller its speed and accuracy. 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 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 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 sensors are not interchangeable between the two gauge controllers in any way, including changing connectors on the gauges.

Please note that as the manufacturer cannot control the conditions of installation and use of the sensors, they are not guaranteed.

Kit Contents

• 52mm AEM gauge
• Bosch 4.9 LSU wideband sensor and weld-in bung
• 52mm (2-1/16”) gauge housing
• Wiring harness and cabling
• Installation instructions

Fuels compatibility :

• Gauge Display/0-5V Output
• Gasoline
• E85
• Ethanol
• Methanol
• Lambda values from 0.68 to 1.36

Whatever the fuel you will be running, the AFR values will always be displayed in “gasoline” mode (Lambda 1 = 14.7). 

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