The purple wire with white tracer, carries rpm signal from ignition module to computer, engine cranking. If no pulse on that circuit, I suspect the ignition module.
I just noticed the voltage readings you gave. The red and white, is B+ with key on. The other wire colors should be ground, no ground with the key on. Engine cranking, there should be a pulse on the ground wire. With key on, no crank, meaning no ground, there would be voltage on both circuits at one injector. If there is constant ground, that circuit may be shorted to ground, or faulty pcm. If I caused you extra work, my bad, sometimes I get in a hurry.
Saturday, November 21st, 2009 AT 2:52 PM