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CODE P0641


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ROSA
New User

Sep 24, 2013, 7:17 PM

Post #1 of 2 (1390 views)
CODE P0641 Sign In

2004
CHEVY
MONTE CARLO
3400 SFI
146135

Car is idling high, not shifting right, and the RPM is running around 1500 or higher while in drive.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Sep 24, 2013, 8:22 PM

Post #2 of 2 (1362 views)
Re: CODE P0641 Sign In

That is a 5 volt reference circuit code. Some of the sensors use 5 volts that comes from the computer.

Check for 5 volts at the TPS grey wire using a volt meter. I am surprised the engine is even running if the 5 volt reference is down.





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