low pressure

  1. negative fuel trims, not hitting full boost.

    i have been dealing with the headache of a problem and so this is my first time posting here. a few months ago the 6 really started acting up. fuel trims started hanging out around -15 on both LTFT and STFT. boost would only get to 12psi WOT (tuned for 22). High pitched squeal coming from hpfp...
  2. Cameron Keyte

    [SOLVED] Fuel Pressure Issue... Need diag help

    Car: 2008 Speed3; 3.5" intake, CS turbo back, AT internals, Reyes Wiretuck, AP v3, (Same tune for years), Damond PCV plate with dual CCs. 180 compression all cylinders, last checked 07/10/2020. Issue: KOEO fuel pressure won't go above 36psi. HPFP pressure won't go above 1060psi after the car is...
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