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P1670 Diagnostic Trouble Code Discussion for June 2008

Output Driver 4 Voltage High Input

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Trouble Ticket Help Requests for DTC P1670
Help Request Posted
2002 Ford F-350 Super Duty Lariat 7.3L Misfire, MIL Lamp on VIN: 1FTWW33F12
P1670: EF Feedback Signal Not Detected. Dear fellowtechs; To all the 7.3 Powerstroke experts out there. This Powerjoke came to me with the complaint that it has to be plugged in to start and run good, even with 70 degree nights. It was just as the owner descibed; hard start with severe misfire, gett...
June 19, 2008