R33 Fpr Remove Vacuum Line

[RamR33]

Hey guys

My R33 has been running not too good the last few weeks.

Really rough on idle and when driving can't go past 3000rpm unless eased on acceleration like resting my foot on pedal and if that.

after trying all the parts listed below I had just removed the vacuum line on the FPR and everything smoothed out idle no hunting and no running real rough.

Could it be my FPR or when removing the vacuum line it runs high in fuel pressure and makes one of my injectors unstuck or Un blocked.

Haven't tryed putting a fuel pressure gauge on as yet.

Have tryed the following parts new.

Fuel pump

Afm

Coil packs

Plugs

Fuel filter

Ignitor

Fuel lines

Vacuum pressure test

Redone all intake

Coolant temp sensor

Tps

any help or suggestions would be great.

[Ben C34]

Put a gauge on it and measure the fuel pressure. No need to guess.

Or isn't a stock reg cheap as? Just swap it out.

Edited March 23, 2014 by superben

[89CAL]

Do you know anyone with a wideband you can chuck on?

Just be good to check the AFR's

Id just check fuel pressure with a gauge but. You may end up replacing the FPR and then find it does the same thing. Sounds like something else to me.

[picklesRs4]

Could be boost leak? Coming onto boost from vaccuum too hard amd opening up a hose or connection somewhere

[picklesRs4]

My bad, didn't read it right before posting