help me!! turbo issues.. - Subaru WRX Forum
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post #1 of 4 Old 06-18-2011, 11:22 PM Thread Starter
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help me!! turbo issues..

hello im a newie in the sti family too keep it simple.. i bought an 2004 sti.. had it for a week and just today i felt the the car became sluggish... the car is stock but has a turbo back exhaust..

when im driving the turbo feels like its not building pressure... the turbine started sounding a bit louder also almost as if it trying a bit harder...

does anyone know what this could be..and any tips on diagnosing this?? any help would be greatly appreciated..
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post #2 of 4 Old 06-18-2011, 11:45 PM
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Start with all your connections, make sure you have nothing loose or even off. Could be as simple asa vacuum leak. It could be that your turbo crapped out also. How many miles on the car?

"2007 WRX- PPG'd, 20G- Tim Bailey tuned
Stage 2 2005 WRX"
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post #3 of 4 Old 06-19-2011, 10:28 AM
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I know you didn't say it but does it have an aftermarket bov?? If so the piston in it may be stuck open. Had that happen when my car had a bov on it. Lived on a 2 mile dirt road and after a while all the dust caused it to stick. Big loss in power and a really loud air sound....major boost leak.

Cobb ap stage 2 ots, catless uppipe, catless turboback, Cobb Sf intake.
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post #4 of 4 Old 06-19-2011, 04:18 PM
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Off-topic, dont you need a tune for a turbo back setup?
Would that cause the power loss if not tuned for it?

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