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i've already used the search button, and didn't have any luck

the car is a stock r33 gtst with the basic mods (fmic exhaust)

car runs fine most of the time

then all of a sudden the car seems to be a bit more sluggish

the induction noise(and blow off valve) gets quieter

and the exhaust noise gets louder

when this happens the car doesn't pull as hard

its an on and off problem

has anyone ever experienced this problem and corrected it?

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https://www.sau.com.au/forums/topic/293970-r33-on-and-off-problem/
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i've already used the search button, and didn't have any luck

the car is a stock r33 gtst with the basic mods (fmic exhaust)

car runs fine most of the time

then all of a sudden the car seems to be a bit more sluggish

the induction noise(and blow off valve) gets quieter

and the exhaust noise gets louder

when this happens the car doesn't pull as hard

its an on and off problem

has anyone ever experienced this problem and corrected it?

....

You need to do a manifold vac and pressure test with an independant gauge. Post the results.

Boost in PSI when the problem occurs

Boost in PSI when it's normal

Vaccum on decel for both as well

ima ring you tmrw and book myself in haha

brand new spark plugs, running stock boost. coilpacks are fine

it drives the same as when i wound up the boost and hit r and r

all this started to happen after a hard night of driving

  • 2 weeks later...

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