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Old 06-11-2011, 03:23 PM   #1
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Default 98 Park Ave - PCM Ground Location

I pretty much want to know where the PCM, engine and transmissions sensors ground out at. I am getting some really odd stuff happening and want to check all the grounds on this beast as it does have some good signs of aging elsewhere. I am really familiar with the grounding system in my 2000 Bonnie but this 98 Park Ave seems completely different.

Descriptive locations would be a great help, pics would be amazing.
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Old 06-11-2011, 03:49 PM   #2
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The sensor ground should be above the oil filter under the alternator.
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Old 06-11-2011, 06:01 PM   #3
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Quote:
Originally Posted by Danthurs View Post
The sensor ground should be above the oil filter under the alternator.
As in the main grounding for the engine sensors?

I also had some trans related codes when I had the engine issues. Any idea where those grounds are located?
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Old 06-11-2011, 07:31 PM   #4
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Your engine should have 2 grounds. The main ground from the battery, and another one on the back and that'* part of the wiring harness. That one is your sensor ground.
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