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P1688 Diagnostic Trouble Code Discussion for June 2005

Unmanaged Engine Torque Signal Delivered To TCM


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Trouble Ticket Help Requests for DTC P1688
Help Request Posted
2000 Dodge Ram 2500 Truck 5.9L No Start VIN: 1B7KF2360Y
P1688: Fuel Injection Pump Internal Malfunction. hope someone can point us in the right direction.diesel is not our shop specialty.what we have is a very good customer's vehicle towed in after dying out on the road.tested for fuel at injector pump,none found.checked for power at lift pump good ground no volt...
June 17, 2005
2000 Dodge Ram 2500 Truck 5.9L No Start VIN: 1B7KF2360Y
P1688: Fuel Injection Pump Internal Malfunction. hope someone can point us in the right direction.diesel is not our shop specialty.what we have is a very good customer's vehicle towed in after dying out on the road.tested for fuel at injector pump,none found.checked for power at lift pump good ground no volt...
June 17, 2005