I just had my car scanned at Autozone and it gave the code above which I'm assuming means driver side O2 sensor reading something f'ed up. Now the code came on when I had the car idling warming up for the drive home from work and it runs fine and the O2 sensors are new (AC delco's). I also have long tube headers for the past 2 months or so and havent had a problem till now. Is the sensor just getting dirty possibly or is this a sign of an exhaust leak near the sensor? Any help is appreciated

Myles

 

Did they give you the exact code, in the format P0XXX? There are a number of codes related to the O2 sensors.

 

I believe it was PO101 if that makes sense. It only seems to come on when I start the car and let it idle sometimes, it doesnt always come on which is what kinda puzzles me.

 

P0101 is "Mass Air Flow System Performance".... doesn't sound right.

Fred

 

Well the lgith came back on. Its a P0135 code. The light only seems to come on when I warm up my car before I leave work. I warm my car up in the morning and it doesnt do it. I've been erasing the code by removing the PCM batt fuse and it'll stay gone until the next day when I go to leave work. What gives? I remember people saying that with longtube headers they were going through O2 sensors but I don't remember what the cause was. Any help/ideas are appreciated.

Myles