AEM's wideband UEGO air/fuel ratio sensor kit includes a 1 meter long Bosch 4.9 LSU Wideband UEGO sensor, connector plug, pins and plugs.
These sensors have a laser-etched, calibrated resistor in the sensor’s connector body. This resistor is specifically created for the exact sensor that it is attached to. Modifying this will invalidate the sensor’s output. The wideband sensor is laboratory-calibrated at the Bosch factory, accurate to 0.1 AFR and never requires free-air calibration when used with an AEM wideband AFR controller.
Replacement Sensor and connector for the following AEM Wideband Controller most of AEM 4.9 Gauges, including Innovate Gauges etc