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P1670 Diagnostic Trouble Code Discussion for July 2004

Output Driver 4 Voltage High Input

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Trouble Ticket Help Requests for DTC P1670
Help Request Posted
1994 Buick Park Avenue 3.8L Poor Idle Quality, MIL Lamp on VIN: 1G4CW52LTR
P1670: QDM 4 Error. ... light being on. The customer also mentioned that the car would stall when going done the highway mainly when the fuel tank is about a quarter of the way full. When I hooked the scan tool up to the car I first got codes PO131, P1640, P1670. When I checked t...
July 07, 2004