Jay----thanks for your reply. I have some additional questions for you. Here they are:
* Is ECU failure that common? This is the first vehicle that I have ever experienced this
* I do remember the electrical tech telling me something about his laptop not been able to communicate with the ECU--I understood that the ECU was not communicating with FI system on the engine. I guess the tech never got past the ECU itself. He did mention that all harnesses had checked out and were conducting siganals back and forth. But as I said, the tech did not seem to be sure of his diagnosis and I did not want to spend on the cost of an ECU if that was not the prob.
* Where would you recommend that i purchase an ECU? Would you recommend new, used or rebuilt?
* Am I looking at ECU failure again with this vehicle?
Your reply is appreciated and thanks for the wiring diagram---art