Dealing With a Bad 2018 Duramax NOx Sensor 1
If you're staring at a glowing check engine light and your scan tool is pointing the finger at the 2018 duramax nox sensor 1, you're definitely not alone. It's one of those parts that seems to cause a headache for almost every L5P owner eventually. Whether you're getting a "poor DEF quality" message or the truck is threatening to drop you into limp mode, the upstream nitrogen oxide sensor is often the culprit behind the scenes. ...