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Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

1995 buick riviera

  • markg123
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1 year 1 month ago #66629 by markg123
1995 buick riviera was created by markg123
1995 Buick Riviera, not super charged cranks. No start has compression. Has spark spray starting fluid and it won't start. How do you test to see if the crank position sensor is working correctly? To spark when it's supposed to.

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1 year 1 month ago #66636 by Monde
Replied by Monde on topic 1995 buick riviera
Your crank and cam sensors have to be good if you have spark and fuel. The Ignition control module receives cam and crank sensor inputs for spark and injector pulse as well as tachometer (RPM). Doesn't your rpm bounce during cranking?
Assuming is never a good thing.

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1 year 1 month ago #66639 by markg123
Replied by markg123 on topic 1995 buick riviera
The tac does not move when cranking

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1 year 1 month ago - 1 year 1 month ago #66641 by Monde
Replied by Monde on topic 1995 buick riviera
The ICM is responsible for rpm and injection pulse. Do you have injection pulse?

Assuming is never a good thing.
Last edit: 1 year 1 month ago by Monde.

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