Fuel cut problem

[bluetlr2001]

Ive been running 12psi with the t2 small. And when i run over that i hit fuel cut. My mods are posted except ive got an ssqv bov with the recurculation kit now. But the other day just out of curiosty i took my upper hard pipe off and stuck my stock pipe back on with and apexi bov that is vented and now i can run 16psi without hitting fuel cut. And i had no boost leaks on my hard pipes or bov. What could be making it do this? Could i not have enough fuel for the solid boost going in with the hard pipes since they dont flex like my stock pipe does?

 

[pooker]

Sounds more like a boost leak instead of fuel cut, is it bucking when it hits fuel cut on and off? If so your hardpipe probably had a leak somewhere.

 

[bluetlr2001]

Its not a boost leak ive checked it and it can hold 20psi for about 30 seconds or longer sometimes.

 

[matt1995tsi]

my tsi did that and it turned out to be a bad fuel filter stopping up at high rpms do to the flow rate