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wiring for the ecm on a '91

Posted: Tue Apr 10, 2007 2:59 pm
by raser13
anyone have the pin outs for a '91 with a 3.1L or  wiring scematic i'm currently trying to track a ghost problem with the digi guage cluster.the tach has problem reading sometimes  and i know it's not the ald line so it's before the brain but i don't know where the singnal enters the ecm and would apreciate any info. p.s. also the alt. signal disapears as well but the coolant stays constant.

wiring for the ecm on a '91

Posted: Thu Apr 12, 2007 3:16 am
by Jeff P
Sorry for the quality, they're old

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Doh!  They're from a Cavalier, but I think they're the same.  If you find that anything isn't matching up, I'll get some pictures taken of my '91 Beretta manual.  No time ATM.




wiring for the ecm on a '91

Posted: Thu Apr 12, 2007 4:33 pm
by raser13
APRECIATE THE INFO