Turbo Stuttering + Oil In Piping?

[palmer]

Hi Guys/Gals,

As of the other day my R33 GTR is not making hardly any boost and is instead "stuttering" once its go past vacuum and onto boost.

here is a video:

I have cleaned the AFM's and also changed the fuel filter just incase. still goes like crap. before i hit boost the car is fine. no problems with normal driving. but once on boost it doesnt go anywhere.

When i took off one of the pod filters to clean the AFM there was a fair amount of oil film around the intake piping.... but only on one pipe... which i guess could be oil seal on one of my turbo's??

the car has the following:

Power FC

HKS priest Exhaust

K&N oil catch can setup

700CC injectors

Garret 2860-7 turbo's

Splitfire coilpacks

Im thinking i might clean out the Catch can (if i can figure out how to lol its a chrome K&N catch can with 2 breathers ontop) to see if its because its full

Any other suggestions?

Many thanks,

Elliott

[R.3.2.G.T.R]

check all piping

any smoke?

Blocked cat perhaps

[palmer]

check all piping

any smoke?

Blocked cat perhaps

I checked all piping and hose clamps etc all tight.

No smoke at all apart from normal unburnt fuel lol

a blocked cat could cause oil to be in the intake pipe? Cus I have been noticing a slight cat type noise as if the insides are losening.

[R.3.2.G.T.R]

take the cat off and check, not hard, both 20min job

you have -7 turbos so shouldnt have lost an exhaust wheel, stock ones typically end up by the cat when it fails

[palmer]

will be taking cat off soon. hopefully its just blocked...

[palmer]

Checked the exhaust. Nothing blocking...

Anyone else know what it could be?

Many

thanks

[DLOOOK]

loosen one of your cooler pipes to see if it makes any difference. did u check all piping including the return pipe for the BOV

[palmer]

yeah i checked all piping.. will double check the bov return pipe but im 99.9% sure everything pipe wise is alright

what will loosening the cooler pipe do?

thanks mate

[DLOOOK]

Loosen a pipe to see if it runs any worse. Also have u done the sensor check on your pfc handset?

[palmer]

Will losen tomoz

And no I haven't really had time to play around with my PFC controller since I've

bought it..

How do I do the sensor check and what should I be lookin out for?

Thanks mate

[levinboy]

Try spark plugs, coilpacks sounds like a missfire

[palmer]

i was thinking that last night. i hope so lol. more likely spark plugs (even though i changed them a couple weeks ago) because i have splitfire coilpacks... but will check them too

[palmer]

checked plugs and coil packs.... All fine

hmmm

[palmer]

turned out to be the wastegate actuator rod. it came loose

[SargeRX8]

Is your AFM between your IC piping? I was just curious as it would seem strange if oil was coming back through the turbo if the AFM is infront of the turbo.