R34 Stops Boosting At 5000Rpm

[gttiwanna]

Hey guys anyone point me in the direction to fix this problem ?

Car - r34 Gtt

Mods - 3in turbo back fmic stock boost solinoid

Problem- car runs great till 5000rpm the hits a brick wall and nothing then put my foot back on and has major lag till I wait for 3 sec then put foot back down again and happens over and over again also have yellow jackets coil packs ad the car is making higher pitch turbo noise when excelrating help please

[34GeeTeeTee]

Have you checked your cooler piping on the FMIC for a split or something? Sorta sounds like a boost leak...... Maybe......

[gttiwanna]

Yer checked it once but mite have to pull everything off again as start over hmmm

[mrgtst1979]

Try cleaning the air flow meter and check your coil packs for any hair line cracks

[Marcus89]

Sounds very similar to boost cut I was getting when tuning my car the other week but then your car shouldn't be hitting 14+ psi so I don't know

[gttiwanna]

Stupid question is the boost sensor the same in the auto and the manual ?