Originally Posted by
jefnvk
Had that with an old Blazer, that went in a couple times to sort out. Finally figured it was a gas cap that wasn't sealing on the filler neck properly, that I could fix for many hundreds of dollars in costs for labor and a new tank, or I could just drive with no ill effects whatsoever.
This; had the throttle position sensor turning the one in my Saturn on fairly often. $80 part, or possibly $60 wiring harness that would pretty much require pulling the engine to get the replacement harness in place. Still got 38MPG, and no trouble getting up to 75 on the interstate, so no way I was going to spend the money just to get the light to stay off when I had a $13 reader to reset it with.