SureTrack Community Real Fix: Exhaust NOx, We Answer
The Nitrogen Oxide (NOx) Sensor of a 2010 BMW 1-Series was faced with a faulty NOx sensor signal parameter. This allows the engine to run rich and over-using DEF, which could send the engine into limp mode when not addressed. Discover how the SureTrack community helped a fellow member fix the NOx sensor to ensure proper levels of nitrogen oxide are released. This post provides a detailed account of the diagnostic steps taken to identify the problem in the exhaust system and quickly find a resolution.