Fuel Cut?

[1gentalonfan]

My car drives perfectly smooth and strong at about half throttle, but when i open it to full throttle it starts cutting in and out and feels like it has less power than at half throttle. Is this a fuel cut from my stock ecu? Or is stock fuel system just being overrun? I know i have no boost leaks as i just fixed my last one (intercooler was corroded through). A little background on my car, I'm running 16 psi from the stock 14b, 3" turbo back, stock ecu and fuel system, hacked aircan, bpr7es plugs, cyclone mani properly actuated with an rpm switch, and ive cleaned everything under the hood that there is to clean. When my old intercooler was still leaking it actually ran a tiny bit better, it still stuttered a tiny but not this much and it was actually ballsier? I'm really confused on this one, but its really annoying. Any help is much appreciated, thanks guys.

 

[Ceddy]

Thats not fuel cut. You will definitely know when you hit fuel cut.

Check if your getting alot of knock. Pulled timing will make you sputter and bog.

Check A/F with a wideband. Running really rich will make you sputter also.

 

[booostedGSX]

Thats not fuel cut. You will definitely know when you hit fuel cut.

Check if your getting alot of knock. Pulled timing will make you sputter and bog.

Check A/F with a wideband. Running really rich will make you sputter also.

+1. Get a wideband and check out your A/F ratio. Might as well get yourself a logger as well.

 

[1gentalonfan]

i plan to soon but im pretty broke right now. I know my timing is dead on i just redid it when i put the cyclone mani in and my tps is adjusted correctly. could this just be my gas that im using maybe? Where i live kwik trip and holiday are taking everything over and from my experience holiday is water, and kwik trips is mediocre. At the moment i run mobil 91 octane. I do have a bp that carries 92 and one like 20 minutes away that has 93. Think thatd make a difference?