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P1688 Diagnostic Trouble Code Discussion for February 2013

Unmanaged Engine Torque Signal Delivered To TCM


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Trouble Ticket Help Requests for DTC P1688
Help Request Posted
2002 Dodge Ram 3500 Truck 5.9L No Start VIN: 3B7MC36632
P1688: Fuel Injection Pump Internal Malfunction. ... fuel filter, it was pretty nasty, and changed fuel pump relay. vehicle would start and run for a few seconds then stall. Waited a while and tried again. Vehicle started a idles fine, however cannot get rid of codes p1688 ...
February 16, 2013
2002 Dodge Ram 3500 Truck 5.9L No Start VIN: 3B7MC36632
P1688: Fuel Injection Pump Internal Malfunction. ... fuel filter, it was pretty nasty, and changed fuel pump relay. vehicle would start and run for a few seconds then stall. Waited a while and tried again. Vehicle started a idles fine, however cannot get rid of codes p1688 ...
February 16, 2013