R34 Misfiring

[john-e boi]

i use to run a gfb hybrid bov on my r34 gtt auto and recently bought a greddy type s. installed it just before and the car just misfires, constant booping from the exhaust. i've tried venting to atmo to start off with and the car misfired. thought i'll try plumbing it. still misfires. could there be something with the bov itself, spring tension is too tight/loose or am i doing something wrong. any help would be greatly appreciated.

[john-e boi]

by the way these are my mods just in case it helps. front mounted intercooler, GReddy Type-S blow off valve, A'PEXi power intake, Topstage airbox with custom cold air intake pipe, Blitz spec-R boost controller, Sard fuel pressure regulator, Xforce spilt dump pipe, HKS front pipe, decat pipe, Blitz NUR spec exhaust, Bosch 040 fuel pump, Apexi safcII

[MotoMan]

Well id take the new BOV off and see if it still misfires..

If it does there could be something else wrong

[john-e boi]

yeah was going to do it tomorrow. main question is can a bov be faulty and cause misfiring problems?

[TTT]

when does it misfire?

under load?

any particular rev/boost?

or do you mean backfire instead of misfire?

[The Mafia]

when does it misfire?

under load?

any particular rev/boost?

or do you mean backfire instead of misfire?

GTST - do you want to do the honours, or should I ?

[TTT]

I think you seem to enjoy it more than I do these days.

go for gold.

[john-e boi]

constant misfire. and seems to be running on 5 cylinders.

[Xr33]

is it pinning or fluttering often mistaken for missfires.if its not blow of valve check crank and cam angle sensors my problem was sensors

constant misfire. and seems to be running on 5 cylinders.

[The Mafia]

haqve you checked your coilpacks?

[john-e boi]

yeah going to check coilpacks tomorrow. weird thing is, it was perfectly fine. drove it home, put blow off valve on, started it and it started misfiring. thats why i thought blow off valve. put my old blow off valve on and it still playing up.