HELP P1631 CODE - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-11-2005, 06:04 PM   #1
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Default HELP P1631 CODE

HAs anybody had this code and what fixes it, it something to do with the ignition, the check engine lights comes on but if i turn the car off it goes off and after restart it sometime doesnt come back on, i have a 95 ssei, series 1, the car has a bit of a rough idle, could this be a simple fix or big money, Thanks for all your help
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Old 08-11-2005, 07:03 PM   #2
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Only code I could find was a 1630, no 1631 in the 95 service manual

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Old 08-11-2005, 08:50 PM   #3
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ya maybe thats what it was, something to do with the ignition i think it sucks the check engine light stays on
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Old 08-11-2005, 08:52 PM   #4
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1630 has something to do with the voltage being too high or too low... Above 17v or below 9v I think...

But if possible I'd have the codes pulled again.. Then erase them and see if they return..

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Old 08-12-2005, 07:53 PM   #5
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I just checked my Alldata and there is indeed no code 1631 listed for this year.

Good luck,
Sellncars
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