Buick 3800 throwing p1640 which dont exist!!
This car is throwing a p1640 code which doesnt even exist!!! We've tried a new ECM and that doesnt work!!! What could this be??? thanks
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Related fault codes
P1640
Comments (8)
Anonymous
2007-02-13 15:01
What is "Driver 1 Input High voltage"???? thanks
Anonymous
2007-02-13 16:00
try the dealers scan tool !
Anonymous
2007-02-14 15:58
What is the name of the dealer's scan tool? Actron? Tech 2? I have a MODIS which was $2k What could cause: "Quad Driver 1 voltage too high"? and Quad Driver 4 thanks
Anonymous
2007-02-14 16:02
1994 Buick Regal Gran Sport
Anonymous
2007-02-14 16:05
So if you hold the key in the start position and let it crank over it wont start! But, if you barely let it go into the start position for a second then it will start!! WTF? Its a ghost / gremlins! thanks On a different car, we have to take off a plug from the coil in order to get it to start...
Anonymous
2007-02-15 16:46
gm used the Quad driver system on those cars for alot of years, if the check engine light bulb was burnt out or even the charge bulb or oil I think it would generate alot of driver codes. Egr was another one and so was the 02 sensor, nbut neither should keep the car from starting, I know the ignition switcheds are problematic in some gms as are the pass lock system if yours is equipped with it! Tech 2 is the dealer tool! I 'd love to have my own MODIS, nice tool!
Anonymous
2007-02-15 21:51
thanks alot jeff!
Anyone have an Alldata.com membership? I just lost mine today (never got to use it either).