QuestionQUESTION: -Roland
Still no spark coming from the engine. I tried grounding the threads of the plug on a couple of different spots on the engine and intake. I also tried switching wires. No spark after a dozen or so cranks (with the lights out of course).
Shawn
ANSWER: Hi Shawn,
Have you determined whether you have 12v on the black/red wire at the distributor plug that has two pins but only 1 wire, while you are cranking it over?
And I assume that the fuel pump is heard to run for a second when you turn the key to the run position, correct?
Are there still no fresh codes?
Please answer those 3 questions.
Roland
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QUESTION: I hear the fuel pump running for a second when turning to run. No fresh codes. The voltage spikes to 10V for a split second on the distributor and then I can hear the relay click and the voltage drop to zero.
ANSWER: Hi Shawn,
I have to assume that the cam or crank sensor is still not putting out a signal that is acceptable to the ecm or the ecm is not seeing it. The ecm needs to activate and maintain activation of the ASD to get 12v to the coil. You could try jumping the contacts of the ASD and then try to start it and see how it is running. That would give you an idea about the quality of the signals. If it runs poorly or not at all then it has to be the sensors or the ecm; if it runs well then maybe the ecm is not closing the ASD as it should which could be internal to the ecm. So jump from the red/black to the black/red at the ASD socket and then try to start it.
Don't leave it that way however, because it is not safe and it will leave alot of things 'hot' which will drag down the battery.
Roland
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QUESTION: Roland
I jumped the across the contacts and the engine did not start. The same sound of the starter running was heard, with an occasional hammering sound.
I measured the voltage between the black/red and ground to be 11.25V without cranking, and just under 10V while cranking.
Code 42 popped up twice when the ASD was disconnected.
Shawn
AnswerSo there is evidentally not signals from the sensors sufficient to 'drive' a spark or you would have gotten it to run somewhat if not well. How about going back to comparing the pulses of the cam with the pulses of the crank sensor? Supposedly it should oscillate between 5 and 0.3V, and you told me the crank was closer to 0.03V. See what the cam sensor pulse is like. The common sensor ground is pin 43 at the pcm, and the crank signal is pin 32 while the cam signal is 33.
I can't think of anything other than one of those two sensors being faulty as an explanation of why the ASD won't close and why even when you jump it the engine won't catch. You say the rotor/cap/distributor is new, so that only leaves the sensors. The last possibility is the ecm has gone bad or the spark coil 'driver' wire, pin 4 at the pcm to pin 6 at the distributor plug, is faulty.
