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This morning I wound it out getting on the highway. In first gear at around 6500 rpm it cut out for a split second and then continued up. 2nd gear, same thing @ 6500 rpm the engine cut out just momentarily and then continued to climb. Both times that it cutout was for less than 1 second. I did not attempt to rev it that high again. Both times that this happened it also lost the tach signal. Other than the two times I described it had no other issue for the remainder of my commute.
I'm trying to determine what I should be looking at first. Since the tach signal was lost both times I think that safely eliminates things like coil packs, spark plug wires and spark plugs because none of those things could cause the loss of the tach signal. The loss of the tach signal I belive indicates that the ICM lost the signal from the CPS. I plan on datalogging it tonight and try to replicate the problem. If the scan shows 0 RPM at the time that the motor cuts out, and in reality it is at 6000+, then that will confirm loss of CPS signal. So right now I'm thinking it must be a faulty CPS, CPS wiring or ignition module. Any other ideas? I hate electrical problems!
I'm trying to determine what I should be looking at first. Since the tach signal was lost both times I think that safely eliminates things like coil packs, spark plug wires and spark plugs because none of those things could cause the loss of the tach signal. The loss of the tach signal I belive indicates that the ICM lost the signal from the CPS. I plan on datalogging it tonight and try to replicate the problem. If the scan shows 0 RPM at the time that the motor cuts out, and in reality it is at 6000+, then that will confirm loss of CPS signal. So right now I'm thinking it must be a faulty CPS, CPS wiring or ignition module. Any other ideas? I hate electrical problems!
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