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Go Back   NASIOC > NASIOC Technical > Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo)

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Old 07-12-2015, 11:49 PM   #1
mattchyuuu
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Member#: 411061
Join Date: Jan 2015
Chapter/Region: RMIC
Location: Ogden, UT
Vehicle:
2004 WRX Limited

Default Weird sound. Sounds like sand paper.

It only happens when the motor has been running for quite a while and only does it sometimes. I'm thinking it might be the BPV going out, but I want more opinions.
Also that slight knock sound only happens when the motor has been running for a while too. The sounds go on and off together.
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Old 07-12-2015, 11:51 PM   #2
mattchyuuu
Scooby Newbie
 
Member#: 411061
Join Date: Jan 2015
Chapter/Region: RMIC
Location: Ogden, UT
Vehicle:
2004 WRX Limited

Default

It is an 04 wrx. New short block and rebuilt heads with a stage 2 set up. Pro tuned and running 16psi. The tune is running rich at the moment because I just moved to a different elevation from where I got it tuned.
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