I am new to this site and I come with a bit of a puzzle.
I have a 2001 Ram 2500 with auto transmission (wish had the manual), with a Edge Comp fueling/timing box, AFE system, 4" exhaust, and with fuel delivery problems. The dealer changed the lift pump about 1 year ago and now it appears to have a similar problem. The thing is that the fuel pressure sensor (comming off the VP44 shrader valve) sometimes reads 15 psi (usually colder days) but today (much hotter) it only got to 6 psi and dropped down to 3 psi.
The truck also has dropped the fuel mileage and every once in a while it has a hard time starting. I checked the codes today and it shows the infamous PCU P1693 and the ECU P0216; what does this mean??
I know my fuel gage is working thanks to the guys at Geno's (new sensor and all).
Another problem I been getting is the dead pedal. At times, only when I start the truck, I hit the pedal but nobody is home. The funny thing is that the engine fuel pressure is high (12 psi), and the engine appears to rev slowly (sometimes faster than others) but the beast will only crawl. What gives? If I stop and cycle the pedal a few times, the trucks moves along like if nothing is wrong with it. This occurs maybe once or twice a week.
Is it one problem or is it two? Odds that it is athe lift pump for problem 1, but is it the Throttle Position Sensor for problem 2? At 180 for a lift pump and 450 for a sensor assembly I am looking at Toyotas!! (Did I say that out loud?).
Anyhow, I would appreciate your wisdom in this matter.
Thanks,
DaGoat.
I have a 2001 Ram 2500 with auto transmission (wish had the manual), with a Edge Comp fueling/timing box, AFE system, 4" exhaust, and with fuel delivery problems. The dealer changed the lift pump about 1 year ago and now it appears to have a similar problem. The thing is that the fuel pressure sensor (comming off the VP44 shrader valve) sometimes reads 15 psi (usually colder days) but today (much hotter) it only got to 6 psi and dropped down to 3 psi.
The truck also has dropped the fuel mileage and every once in a while it has a hard time starting. I checked the codes today and it shows the infamous PCU P1693 and the ECU P0216; what does this mean??

Another problem I been getting is the dead pedal. At times, only when I start the truck, I hit the pedal but nobody is home. The funny thing is that the engine fuel pressure is high (12 psi), and the engine appears to rev slowly (sometimes faster than others) but the beast will only crawl. What gives? If I stop and cycle the pedal a few times, the trucks moves along like if nothing is wrong with it. This occurs maybe once or twice a week.
Is it one problem or is it two? Odds that it is athe lift pump for problem 1, but is it the Throttle Position Sensor for problem 2? At 180 for a lift pump and 450 for a sensor assembly I am looking at Toyotas!! (Did I say that out loud?).
Anyhow, I would appreciate your wisdom in this matter.
Thanks,
DaGoat.
Last edited: