2JayZ Posted March 6, 2010 Share Posted March 6, 2010 Check Engine light on, OBDII reports PO155 which means O2 Sensor trouble. My code reader indicates right (passenger) bank ahead of cat converter. I see two O2 sensors in the header, one close to the firewall and one beneath the intake runner. Anyone know which one needs to be replaced? Quote Link to comment Share on other sites More sharing options...
2JayZ Posted March 10, 2010 Author Share Posted March 10, 2010 I disconnected the battery to clear the code. Put 12 oz of drygas and 12 oz of injector cleaner in the tank, filled 1/2 way with 93 octane fuel. Drove the car for about 20 miles and the Check Engine light came on again, still code PO155. Does anyone know which oxygen sensor this refers to? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.