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P1670 Diagnostic Trouble Code Discussion for December 2012

Output Driver 4 Voltage High Input

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Trouble Ticket Help Requests for DTC P1670
Help Request Posted
1999 Ford F-350 Super Duty XL 7.3L Stall VIN: 1FDWW33F0X
P1670: EF Feedback Signal Not Detected. ... day or two, and sometimes it will do it several times a day. It has been back several times and im going crazy. I have replaced cam sensor, PCM, ICP sensor. It keeps popping codes P1280, P1670, P1316, PO344 AND PO340. He th...
December 06, 2012