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fuel pressure regulator

  1. 911 Problems Forum
    I done a egr delete recently and noticed my truck throwing a p0090 dtc. After checking my wiring harness i seen that i broke the plug in on my fpr after replacing the fpr the code went away for a couple of hours but then i got codes p0088 and p0090. Could the new fpr be fault or could it be...
  2. 01-04.5 LB7 Duramax Powertrain
    Earlier today I installed a fuel pressure gauge from Glowshift to monitor my AirDog 150. I bought and installed the 8 psi spring from Vulcan Performance. My gauge reads a minimum of 12 psi while the engine is under load and about 14-15 psi while idling. Since I installed the 8 psi spring I...
  3. 01-04.5 LB7 Duramax Powertrain
    Im new here and first time posting. I tried searching but still wasnt for sure so i thought i would just ask. I have had a 2003 ccsb for about a month now. Since i bought it it has had a slight surge in idle, and little puff of smoke on start up and idle sometimes. No loss of power or loss of...