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Oleg Akulshin
TryHard
Vic
V8 UZZ31 8PSI of BOOOOST

Posts: 418
Reg: 06-2009

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 Thursday, April 30, 2015 - 08:17 pm, by:  Oleg Akulshin (Sliqu3) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
I know this has been covered many many many times, but I feel like my case is pretty unique as I have tried almost everything!

Symptom:
On WOT car hesitates above 4000-4500 RPM, on the boost gauge it happens around 15-16 psi, if you hold the pedal you can sort of power through it but feels like boost cut (although its not).

Mods: FMIC,HKS FCD, Apexi AVCR, Steel turbines, 3" exhaust, 4" dump, walbro pump 255lph.

Tried: New coils, New coil plugs, .7 gap sparkplugs (new), FP B+ bridge, ECU reset, ECU diagnostic-clean, ECU inspection- no leaking caps. AFR is good upto the point of hesitation.

Still to try: New fuel filter going in once I use up the fuel, apart from that I dont know what else to try?
Oleg Akulshin
TryHard
Vic
V8 UZZ31 8PSI of BOOOOST

Posts: 419
Reg: 06-2009

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 Thursday, April 30, 2015 - 08:18 pm, by:  Oleg Akulshin (Sliqu3) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Its Manual TT non VVTI by the way
Damian Penner
Tinkerer
MB
TT

Posts: 15
Reg: 03-2012

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 Monday, May 11, 2015 - 03:50 am, by:  Damian Penner (Radical1) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Have you done the obvious, check vaccuum lines and injectors?
Oleg Akulshin
TryHard
Vic
V8 UZZ31 8PSI of BOOOOST

Posts: 421
Reg: 06-2009

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 Monday, May 11, 2015 - 07:00 am, by:  Oleg Akulshin (Sliqu3) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Yup... Turns out it's actually boost cut, it just doesn't show the typical "engine electrical warning"

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