Has anyone come across a check engine light since owning there WRX STI it's an 04, this one is stock no aftermarket parts. My friend M.H.who had one before getting rid of the car. The first time it came on it was due to the gas cap. this is what Gillman Subaru of Austin, TX told him . The next time they said the same thing and reset it for him. The third time he took it to Huntland Subaru and they accused him of adding aftermarket parts and that's what did it. I Know this guy real well. I've worked with him for over seven yrs. I'm the guy that talked him into buying the car. So what he did was trade it in for the new Acura. I wish he would have talked to me sooner.