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P1668 Diagnostic Trouble Code Discussion for May 2009

Generator L-Terminal Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1668
Help Request Posted
1996 Ford F-350 XL 7.3L No Start, Surge, Cuts out VIN: 1FTJW35F2T
P1668: PCM To IDM Diagnostic Communication Error. this truck came to me on a hook. last winter the customer thought he geled up. it then sat for several months. when we got our hands on it we found alge in the fuel. we treated whit bio-side, then changed both fuel tanks, lift pump, and many filters, flushed l...
May 21, 2009