mrsald49
New member
2023 AT4 3.0L Duramax, 3100 miles on the odometer. Remote started the truck it was about 19 degrees F outside, after about 10 min started driving truck and MIL light was on dash. Later in the day plugged in my code reader had the following Nox Sensor Circuit P2203 code. I tried to clear the code, my Innova was not able to, the device stated code erased but was still there. Drove about 50 miles and 3-4 start cycles and MIL went away on its own.
Question: On these truck are you not allowed to clear emissions related codes from the computer? Or is that my Innova code reader going to 8 years needs to be replaced with something a little more up to date?
Question: On these truck are you not allowed to clear emissions related codes from the computer? Or is that my Innova code reader going to 8 years needs to be replaced with something a little more up to date?
