Cel p0139
- Thread starter Komodo693
- Start date
- :
- 2008.5 MS3
Last edited:
that video shows the wrong sensor. you want to focus on the downstream. Anytime there is a code related to the a car's fuel injection system (ie oxygen sensor performance) a professional mechanic and smart DIYers will read and analyze all the live scan data to narrow the problem and to see if the sensor is root cause or merely just a symptom of another problem. Up to you on how you wanna handle it.
