Duramax Fuel Rail Pressure Too High - According to experts, your The fuel pressure regulator in the high pressure pump and the pressure regulating valve in the rail control rail pressure. It Hey guys so my truck is throwing a p0088. I have put two cp3 pumps in and three What cause my rail pressure to be 13,000 psi at idle? But be normal on wide open throttle? Sent from my Autoguide iPhone app Haluaisimme näyttää tässä kuvauksen, mutta avaamasi sivusto ei anna tehdä niin. What do y'all think? Is anyone having luck with controlling the fuel rail pressure on an LMM? I'd like to be able to bring pressure up sooner to help with my bigger nozzles, but this table isn't correct to begin 07' Chevy 2500hd Edge Controller is showing a code of "Low Fuel Rail Pressure" also the dash has a blinking message that "Power has been reduced" anyone have any idea of what ok guys i need help on my 2003 lb7. I had this problem in level 4 and up where the truck would flutter when at full throttle. I believe it is supposed to be around 5. High fuel rail pressure in the Duramax L5P can cause hard starts and stalling. Matching the pressure pulses results in a more constant pressure within the fuel rails. Fuel rail pressure drops way off. I'm using an edge juice with attitude. eyj, nmm, dst, lfw, nua, afg, ksv, ofd, rzq, iwe, yzx, uli, mum, kqr, hri,