Really need help have p0088 and p0251 codes need advice
I have a 2003 5.9 cummins and I've read the forums till my eyes are about to fall out, I'm stumped? My truck starts fine but has a loud high pressure sound and when I start driving it, it Boggs down at around 40mph.. I have replaced the Fca, changed out the fca connections ,tested the connections,changed the fuel pressure sensor, rail pressure valve, fuel filter? The only things I have done are change the cp3 or the cam positioning sensor.. Don't really think it's an injector cuz it doesn't smoke and starts great... ?? Can I get some suggestions?? Any1 had these codes...? Please help
p0088 is high fuel pressure and P0251 Injection Pump Fuel Valve Feedback What happens when you unplug your FCA? I think you have a CP3 issue But give Todd a call at T&C Diesel! Google him!
When I unplug the Fca I still have the high rail pressure. I tested the fittings and they get power when I first turn the key forward.. Is their a possibility the cam position sensor can be giving an issue?


