AEM Wideband Bosch 4.9 Sensor
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.
Direct Replacement Sensor for the 30-4110 Digital Wideband UEGO Gauge. Also replaced x-series 30-0300 sensor.
Replacement Sensor for the following AEM Wideband Controllers:
• 30-4110 - Digital Wideband UEGO Gauge
• 30-0300 - X-Series Digital Wideband UEGO AFR Gauge
• 30-0310 - X-Series Inline Wideband UEGO AFR Controller
• All other AEM Wideband Controllers please refer to the 30-2001 Bosch LSU 4.2 Replacement Sensor
