walbro 255 and fpr installed stuttering problem please help

[toyotagt1]

ok i have a 1g 1990 eagle talon tsi awd and i just installed a walbro 255, a fpr and a rewire kit and now my car stutters like fuelcut when it hits boost at around 3200rpms but it dose it before it even hits 10 pounds of boost. the fpr is set at 38psi and im running the stock 450cc injectors what is wrong please help

 

[SpawnedX]

OEM fuel pressure is 43.5.

 

[toyotagt1]

OEM fuel pressure is 43.5.

that's for a 2g a 1g is 38psi according to my dealership manual and iv already tried putting it at 43.5psi just to see and no difference

 

[SpawnedX]

that's for a 2g a 1g is 38psi according to my dealership manual and iv already tried putting it at 43.5psi just to see and no difference

Good catch, my 2Gism gets me again.

You can here the pump whining away right, it never randomly powers off?

 

[MY1GDSM]

that's for a 2g a 1g is 38psi according to my dealership manual and iv already tried putting it at 43.5psi just to see and no difference

FYI, 1g Auto cars have a 43psi Base pressure as well...

 

[toyotagt1]

Good catch, my 2Gism gets me again.

You can here the pump whining away right, it never randomly powers off?

nope its always on

FYI, 1g Auto cars have a 43psi Base pressure as well...

ok thanks you learn something new everyday but do you know anything i could to to try to fix my problem thanks

 

[SpawnedX]

FYI, 1g Auto cars have a 43psi Base pressure as well...

I thought so...

Either which way I imagine the stuttering is going to come down to a fuel problem. Tuning isn't my forte yet, but I have never really heard of anyone using a 255 on 450s...could this pose a problem? Is it possible that the pump is overruning the injectors in some manner?

 

[white92talontsi]

As I stated on your other thread, your probably running too rich.

Sent from my PC36100 using Tapatalk

 

[olddsmer]

Re-gap your plugs to 28 and see if that helps. Clean them up first.
Does your car run alright otherwise?

Regards
Greg