Quoted From dreamer2355:
For the o2 sensor issue, if the CEL code is P0136 – P0141 (bank 1 sensor 2), that o2 sensor is as Beefy suggested, is for the down stream o2 only and the PCM will not use that o2 sensor for fuel system management. It is there to monitor catalyst efficiency.
Report back to us with the correct code number.
Good luck and keep us posted.
Oh, Did he say it was the down stream?
Or are we still waiting to find out?
Cause I did not read him saying one or the other..