I'm new to the forum. I was told this is the best place to get to the bottom of my problem.#I have a '97 4.6 P38 which has had an engine conversion using a#2.8 Mitsubishi#turbo diesel lump. The issue I'm having is the car wont recognize that the engine is running. The BECM appears to be active, as after refitting the battery I can program the key using the door code. I don't appear to have an RPM signal to any of the necessary components i.e tachometer, EAS and gearbox.#Any advice would be greatly appreciated.#