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Old 05-21-2012, 09:01 PM   #2
kwin
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Join Date: May 2011
Location: Grande Prairie, Alberta
Posts: 368
Re: 91 Suburban Cruise control question

So I borrowed a scanner and tried to do some digging, got lots of good info on the burb everything works the way it should. One thing I notices is that road speed as displayed by the speedo vs what the pcm sees is off. When the Pcm says I'm doing 30 i'm actually doing 26.

THink this could be the root of the issue?
I have the scanner for a few days to do more investigating.

Keith
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