There are a couple things that I think could possibly have caused this.
1. I drove the car without the air lid on for about 15 min. I did have the iat sensor plugged in though.
2. I just had the car tuned and I had the egr and air system deleted. I put block off plates on all the holes, and I think it is possible that I might have a very, very small leak on the intake hole. I can't feel it, but I think I might be able to hear it when I am driving.
The car doesn't seem to be running bad at all. The only thing that I might have noticed is a little bit of extra surging when I put the car in gear. Could either one of these cause the light to come on? Should I try just resetting the pcm by pulling the 2 fuses and see if that fixes it or will that erase the tuning that is on the car? What should I do? Need help asap!
New: '13 FX2 & 03 r6
Old: 98 M6 nbm trans am
408, P/P heads, 238/242, a4 to m6 swap, Pro 5.0, HP Evo's 18's