Here is what I found today. When it is cold and snowing the help doesn't show up. The MS injector pulse light flashes when cranking. Even when cold it starts right up but stops when I let the key come back from start to run. It powers up in the on/run position and fires the prestart pulses. It will run with the key in the start position but that is sort of tough on the starter. It works fine with the stock ECM. Wiring? Problem in the GM harness adapter?

Tom, I'm also going to take a look at the IAC circuit. There was a choice there in the assembly as well as a tune setting. But it will run if I can get power in the run mode. Beater


"I wonder if God created man because he was disappointed in the monkey?" Mark Twain