I own a 2002 ram 2500 6 speed with the HO cummins, 145k, recently i was pulling my equipment trailer and upon taking off from a stop sign had what felt to be a dead pedal/poor throttle response, taking 2x-3x as long to get up to around 2000rpm than it normally would. Slight bucking would occur but more of the issue is the slow throttle response. No matter where the pedal position is, there is no change in throttle response, its just a matter of slowly building rpms. Even though the throttle response is slow, the truck will get up to 3500rpm. I did have a garage do a diagnostic on it and they claimed fuel pressure from the lift pump was sufficient. There is no excess exhaust smoke. The truck starts and idles well. Codes thrown are the following: P PCU 0122, 1693 P ECU 0236, 0122, 1693. I have already installed a new fuel filter. Resistance and voltage pertaining to the apps sensor were taken and were found to be outside the specified range so as to determine that the apps sensor was no good. Installed new apps sensor and problem still exists. Looking for any input. Many have told me that theyre leaning to a VP44 but arent exactly sure. Thanks guys. As this is my first post, i hope that i have been thorough enough with details, let me know if i have missed any.
chris
I own a 2002 ram 2500 6 speed with the HO cummins, 145k, recently i was pulling my equipment trailer and upon taking off from a stop sign had what felt to be a dead pedal/poor throttle response, taking 2x-3x as long to get up to around 2000rpm than it normally would. Slight bucking would occur but more of the issue is the slow throttle response. No matter where the pedal position is, there is no change in throttle response, its just a matter of slowly building rpms. Even though the throttle response is slow, the truck will get up to 3500rpm. I did have a garage do a diagnostic on it and they claimed fuel pressure from the lift pump was sufficient. There is no excess exhaust smoke. The truck starts and idles well. Codes thrown are the following: P PCU 0122, 1693 P ECU 0236, 0122, 1693. I have already installed a new fuel filter. Resistance and voltage pertaining to the apps sensor were taken and were found to be outside the specified range so as to determine that the apps sensor was no good. Installed new apps sensor and problem still exists. Looking for any input. Many have told me that theyre leaning to a VP44 but arent exactly sure. Thanks guys. As this is my first post, i hope that i have been thorough enough with details, let me know if i have missed any. chris