Car stutters... Fuel cut?

[dawid4444]

Other than a boost leak, what could be causing my car to stutter/hit fuel cut at only 10 psi.


I just recently installed hard IC piping and a Greddy RS bov. I did a boost leak test and found some leaks at the injectors. I replace those injector seals and it still do that :/
and if i rais the boost up it got worse :/

thx for help

 

[misphit]

If this is one of your first blt's that you've performed on this car, you may have to spend some more time chasing leaks. What psi are you testing at? How long does the motor hold the pressure? I spent 2 weeks chasing leaks on mine...

If it's not a boost leak, I would check ignition components next; spark plug wires arcing, weak coil pack, bad transistor, bad plugs, etc.

Good luck.

 

[jimmythesaint]

Is it a stutter or is it fuel cut? They aren't the same thing and are pretty distinguishable. Fuel cut feels like you hit a wall, considering what it is (the ECU cuts off the fuel to the motor) it should feel that way.

If its just a stutter then Id be checking timing, spark, or fuel components. You should not be hitting fuel cut at only 10 psi.

 

[dawid4444]

its like a stutter but when i rice the boost up like to 14 psi it got realy worse :/
and i thought that maybe it is fuel cut

ok i changed spark plug wires i rewire my fuel pump i changed fuel filter and my cel is on
Code P1105 so it is Fuel Pressure Solenoid i change it and it is still on :/ idk maybe the car is running too rich or lean but i don't know how to check it
i have A/F gauge but i don't have a o2 Wide Band

but i know the stock fuel system is up to 15 or 16 psi without any tune up
i had a gst and i drove 16 psi and the gst had stock fuel system so idk :/

i dont know what to do now ??

and my bov leaks at 10psi when i did the boost leak test
can the bov be a problem ??
or it should be like that ??

can i use stock 1g bov ??

 

[oldcarguy85]

all these leaks you are describing are more than likely your problem. In order to diagnose a problem, take factors out one at a time, so fix ALL your boost leaks, test, and if it still happens go from there.

 

[Defiant]

Fix your boost leak, and do not bump your threads.

You're not getting fuel cut at 10psi.

 

[dawid4444]

i know but it is something wrong :/
only 10 psi ??
and the car stutters at 10 psi ??

 

[smoka_840]

so what did u figure out??? im having the same problem and cant figure things out

 

[dawid4444]

nothing yet ;/ cause i realy dont have time now
but if u find out something please let me know
ok thank you

 

[dawid4444]

ok it was my coil pack
i put my custome coil on plugs and car is runing amazing