93 Buick Park Avenue turn over but no start
10-15-2016, 10:42 AM
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93 Buick Park Avenue turn over but no start
I have a 93 Buick Park Ave 3.8l, turns over but no start, I have fuel to the rail, I've replaced the coil packs and plate. I've replaced the crankshaft sensor. It'* got a great battery. Still no spark.. Could it be the camshaft sensor and where is it located on this model
10-15-2016, 11:02 AM
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The camshaft sensor is on the timing cover, above the harmonic balancer. It has no effect on the ignition system however. It'* only used to reference when TDC for #1 cylinder is passing by to synchronize the sequential fuel injection. The Crank position sensor does everything ignition related.
I would check over wiring and connectors. Also make sure you are getting power where you need it, and check grounds in that area as well.
I would check over wiring and connectors. Also make sure you are getting power where you need it, and check grounds in that area as well.
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Tech II (10-16-2016)
10-16-2016, 07:57 PM
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I agree with Rjolly87....cam sensor has nothing to do with spark.....
The crank sensor, ignition module, coils and wiring between them is what creates the spark....
The crank sensor has to trigger the ICM which controls the coils....you have to test for a signal for the crank sensor by manually rotating the crank....if the signal is there, then if power and ground is is present in the harness to the ICM, then you need an ICM....
The crank sensor, ignition module, coils and wiring between them is what creates the spark....
The crank sensor has to trigger the ICM which controls the coils....you have to test for a signal for the crank sensor by manually rotating the crank....if the signal is there, then if power and ground is is present in the harness to the ICM, then you need an ICM....
10-16-2016, 08:05 PM
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I agree with Rjolly87....cam sensor has nothing to do with spark.....
The crank sensor, ignition module, coils and wiring between them is what creates the spark....
The crank sensor has to trigger the ICM which controls the coils....you have to test for a signal for the crank sensor by manually rotating the crank....if the signal is there, then if power and ground is is present in the harness to the ICM, then you need an ICM....
The crank sensor, ignition module, coils and wiring between them is what creates the spark....
The crank sensor has to trigger the ICM which controls the coils....you have to test for a signal for the crank sensor by manually rotating the crank....if the signal is there, then if power and ground is is present in the harness to the ICM, then you need an ICM....
10-17-2016, 03:17 AM
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10-17-2016, 10:57 AM
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Posts like a V-Tak
05-31-2021, 09:53 PM
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[QUOTE=Tech II;1621155]If the parts replaced are all good then it'* either a wiring problem, connection problem, or power/ground problem....
/QUOTE]
that'* what I was afraid of.
All parts were new off the shelf except for the ECM.
/QUOTE]
that'* what I was afraid of.
All parts were new off the shelf except for the ECM.
06-02-2021, 09:53 PM
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The last post in this thread is over four years old. Please do not post in threads that have no entries less than six months old. Please refer to https://www.gmforum.com/introduction...-first-304557/ for more details. If you have a question related to this thread'* subject, please start a new thread with a reference to this thread.
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