[Buellwinkle]

But if your harness has oil in it you probably have to replace it also, hence the big expense of putting in a whole new engine wiring harness, otherwise the problems will continue. The extension is to keep new oil from dripping into the harness. One advantage of having the dealer do it is that if there is a recall they will have to re-imburse you. This is why it's key to go to the nhtsa website and file a complaint and also, since this messess up sensors, go to the FTC, I believe they handle complaints related to the Federal Clean Air act for motor vehicles.