Ok so I came across the hpfp fuel pressure valve rattling trying to control pressure when on cold start with cold start enabled or not.
This only happens when the hpfp is over driven or where a larger hpfp is used as its targeting over 2000psi at idle.
This happens with shotgun or helix and also heard of s55 style overdriven pump do this when the car is cold and the water is under 104f.
Once it reaches the temp the fuel pressure just drops to a sensible 600 to 800 psi and hpfp fuel pressure valve rattle stops.
Its not really an issue but it sounds horrible.
Could it be fixed and have a check box for ones overdriving their hpfp fuel pump ?
@jyamona @Twisted Tuning
This only happens when the hpfp is over driven or where a larger hpfp is used as its targeting over 2000psi at idle.
This happens with shotgun or helix and also heard of s55 style overdriven pump do this when the car is cold and the water is under 104f.
Once it reaches the temp the fuel pressure just drops to a sensible 600 to 800 psi and hpfp fuel pressure valve rattle stops.
Its not really an issue but it sounds horrible.
Could it be fixed and have a check box for ones overdriving their hpfp fuel pump ?
@jyamona @Twisted Tuning