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P1688 Diagnostic Trouble Code Discussion for June 2012

Unmanaged Engine Torque Signal Delivered To TCM


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Trouble Ticket Help Requests for DTC P1688
Help Request Posted
2000 Dodge Ram 3500 Truck 5.9L No Start
P1688: Fuel Injection Pump Internal Malfunction. this is my own truck and i sure dont want to buy an injector pump! was driving in town 30 mph and it just started missing and surging .. cut out it has 22lbs on the lift pump pressure changed it last year.. cracked the injector lines and lots of fuel coming ou...
June 04, 2012
2000 Dodge Ram 3500 Truck 5.9L No Start
P1688: Fuel Injection Pump Internal Malfunction. this is my own truck and i sure dont want to buy an injector pump! was driving in town 30 mph and it just started missing and surging .. cut out it has 22lbs on the lift pump pressure changed it last year.. cracked the injector lines and lots of fuel coming ou...
June 04, 2012