Ed, Call Stefen or Bill at DTT and get a filter box for your TPS wire. Works like a charm and is about $50 US. Haven't had any problems since I installed it. Unwrapping the wires from your TPS is a chore. But you can do that too and assure yourself of another possible fix. I liked the filter as it was easy to install one wire and a ground. Bill and or Stefan will be glad to help you over the phone. Great People. IMO