I was at the track on Saturday and threw an SES light mid-track. When I got back to the pits I had a buddy pull the code for me and it returned a P0103. I just happened to have a spare MAF on me (was doing some testing between ported/de-screened and stock) so I made the swap. Now, both of these sensors worked fine prior to this time down the track (I had run the one for a year+ and the other for a few months with no codes) but they're both throwing the same code now. The plug appears to be fine, I don't see any bent or dirty pins, so I'm out of ideas.

Any help?

 

http://web.archive.org/web/200111080...06-04-007.html

 

Wouldn't that cause intermittent appearance of the MIL? This sucker STAYS on, even after resetting the PCM or clearing the code with a scanner.

 

Not sure. All I know is my 98 developed this problem after installing my cam. On WOT shifts it would set P0103. Haven't had a problem since.

 

It disappearef Friday night on it's own while I was on my way to a barbecue. I can't explain it, but the car ran 3 tenths quicker today than it did last weekend with the light on.

 

Have this problem in a 2001 Vette....anyone got anything on that?