Hi,

I have been struggling with the Sputtering/hesitation/bogging/rough idle issues since around three months. I have installed an adjustable FPR, If i increase the PSI to 55 with vacuum hose disconnected the car runs perfect and if i set it back to manufacture specs the car starts to runs like crap. Any ideas?

 

bump

 

Have you checked the basics?
Compression good?
Pull the injectors and check they are not clogged or carbon fouled.
Verify your fuel pressure gauge is accurate.

 

fuel filter recently replaced.Compression is good. I haven't checked the injectors yet. The gauge is accurate because i have tried another one.

How do i know that the injectors are clogged? i have tested the resistance only and all of them around 3 Ohms.

 

What happens when you set it to 38 and leave the hose disconnected ?

Can you make a clear detailed video showing the different configurations and what happens in real time when using each of them ?

 

Was anything done three months ago when this all happened?

 

I will try to capture a video this weekend. If i set it to 38 with hose disconnected it bogs a bit, idles rough and when hit the gas it sputters.


Only oil change and fuel filter. It just happened while i was driving.