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Have you tested fuel pump pressure with a gauge?
Are you able to pull up HPOP Injection pressure and IPR duty cycle with your scan tool?
If the fuel supply pressure and high pressure oil systems aren't up to par, the injection event won't occur exactly when the PCM wants it (late firing) and the fuel won't atomize properly to produce a power-building burn, making throttle response slow.
Are you able to pull up HPOP Injection pressure and IPR duty cycle with your scan tool?
If the fuel supply pressure and high pressure oil systems aren't up to par, the injection event won't occur exactly when the PCM wants it (late firing) and the fuel won't atomize properly to produce a power-building burn, making throttle response slow.
