SES light came on today. Car seems to be running fine, but I think it's a tad but lean, I put a Crower cam in it in the spring, and bored out the intake. It seems to be cooling down now, so I think it's leaning out... It's also not tuned yet so I think that may fix it..

But if it doesn't, what would cause a lean condition? Injectors, fuel pump, fuel filter? Thanks for the info in advance!

 

Bump.