I have done today the diod on the harnes, on my friend car, temp. outside was 52 F!
The CEL was on before i do the mod. After 5 min. P0455 came out. The thing that surprise me is wen you shut off the car the CEL. disappear ( Inow sound stupid) wen you turn on the engine the CEL is off and after 2-3 min. came back!! ! .
Any IDEA ????
PS: Great mod. by the way.