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Old 06-06-2010, 04:52 PM
DCCD Donut Driver
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Default Boost Flutter

Hi All

I have a MY02 STI which makes a flujtter sound on high boost. Not sure what is causing the problem if any.

The car is stock apart from TB exhaust and pod filter. The car spikes around 1.5 bar which i feel is too high - but when it spikes on occasion it makes a fluttering sound and you can see the boost gauge needle bouncing around the 1.5 bar mark. Then after a sec or two at the boost it hold firms around 1.2 bar. I noticed this a little while after a purchased the car and thought it was the HKS SSQ bloff valve not holding the boost - i have since put the stock blow off valve back on.

I really need to get the car to ASG to do a tune - just need to save up the cash.

Can anyone explain what is happening.


Anthony
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