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Old 11-14-2012, 05:12 PM   #41
Scooby Newbie
Member#: 330568
Join Date: Aug 2012
Chapter/Region: MWSOC
Location: Upper peninsula mi
05 Wrx


Originally Posted by SubWrx13
Ok I do have aftermarket uppipe. Didnt know that.. So now to the boost leak testing!
Ok... Updates!!

Boost flutter problem.... (at low throttle)

I have aftermarket uppipe
I have new o2 sensor
I have new coils
New spark plugs
New MAF sensor

Overall car feels like night and day. But today got new MAF and it didnt fix. When its disconnected flutter disappears.

Have not done boost leak test. (wont flitter when maf disconnected.
Compression test was good.

Last guess of mine is:

Bad Tune.

And then I give up.

Any thoughts?
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