I have an turbo II with many mods. When I drive the car for about 15 minutes the car start to feul cut at 6000 rpm and then 5000 rpm and so on until the car shut off. Then for me to start the car I would have to disconnect the feul pump relay, crank it and plug the relay back on. I have a brand new walbro 255 feul pump, and new feul filter. I don't think it's the injector because the car run good for about the first 15 minutes. And I aslo rewired the feul pump thinking the voltage decrease to 10 instead of 12 voltage. Please help me.

 

Do you have a fcd hooked up?

 

do you have a boost gauge? do you have injectors? do you have rtek?

need to be more specific...if you havent upgraded your fuel system, and added an FCD...standalone FCD or RTEK, then you will hit fuel cut. car cant boost past 8.6PSI...

 

yes i have a fcd

 

I do have a boost guage, fcd , stock turbo, front mount, rebuilt motor with about 40 miles on it and i boost 10 psi with no problem

 

maybe its your wastegate?

 

hmm.. disconnect pressure sensor vac line.. Plug line. DONT BOOST. go drive for a while.

report back.

 

your boosting 10psi on a motor that only has 40 miles on it, or is it 40k?

 

check your boost sensor