95 Grand Prix 3.1L Starts then dies when cold runs when warm check engine light on - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 12-13-2014, 09:02 AM   #21
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if you can get some help its easiest to take the trans inspection cover off and have them brace the flywheel against the trans with a big prybar or screwdriver
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Old 01-04-2015, 06:41 PM   #22
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Final update for those who may have this issue. It was the MAP sensor. Also many many sensors CAN be tested using a simple multi function tester. Throttle position is a basic potentiometer. The map sensor is a vacuum operated variable voltage. Crank sensor is a hall effect sensor etc, so once you understand what the sensor does and how it works you can test them with a simple voltmeter. You will need to know what range the sensor operates in as well. Thanks for all that replied.
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