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Old 11-18-2012, 12:43 PM   #1
Tenancious
Scooby Newbie
 
Member#: 280034
Join Date: Apr 2011
Location: Orlando FL
Vehicle:
2002 WRX
blue

Default 02 wrx not boosting

Hi everyone:
So i am getting extremely mad :/ lol i think my 2002 wrx has a boost leak because my car won't go over 7 psi and i cant find the problem. I have changed the ecu, boost solenoid, restrictor pill with hoses, fuel purge valve with hoses, manifold, tgv gaskets, zip tight on every hose, another westgate, bov, front o2 sensor ..... Any other ideas? What am i missing??? I cant keep running at 7 psi!!!!!!

Mods: full exhaust, uppipe, cai, bov,
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Old 11-18-2012, 01:21 PM   #2
mod maniac
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Member#: 300551
Join Date: Nov 2011
Chapter/Region: SCIC
Location: mariposa ca.
Vehicle:
2&4 fxt & fxt sti
Fullers Garage

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I don.t see a tune on your list, with a cai you need a tune. You can pull the wastgate hose and drive it, if the boost goes over 7 psi then it would be a control issue, if it doesnt you are looking for a boost or preturbo exhaust leak. Be careful don't go into overboost.
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Old 11-18-2012, 01:26 PM   #3
Tenancious
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Member#: 280034
Join Date: Apr 2011
Location: Orlando FL
Vehicle:
2002 WRX
blue

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No it is no tuned, i bought it with the cai. So i can have a leak before the turbo and that can still make my car run rich?
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Old 11-18-2012, 08:05 PM   #4
mod maniac
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Member#: 300551
Join Date: Nov 2011
Chapter/Region: SCIC
Location: mariposa ca.
Vehicle:
2&4 fxt & fxt sti
Fullers Garage

Default

I didn't see you mention in the op that it was running rich, is it? A cai will change your afr's and needs to be tuned for. A bov is a bad idea and needs to be tuned for. On an 02 you can install an exhaust and not tune but it is always best to tune fore it. Your boost problem can be caused by all of this or something else. Try what I told you in my first post and let us know what happened.
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Old 11-24-2012, 05:54 PM   #5
Tenament
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Member#: 246813
Join Date: May 2010
Chapter/Region: NWIC
Vehicle:
'02 WRX
WRB ::

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please take the CAI off and replace with a factory box as soon as possible. This will prevent some nasty things our 2.0's are known for when modding the intake without proper tuning
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Old 11-24-2012, 06:07 PM   #6
subaru_gc8
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Member#: 29292
Join Date: Nov 2002
Chapter/Region: SCIC
Location: Orange County CA
Vehicle:
2004 WRX wagon
silver

Default

try getting boost leak tester and pressurize your intake track and see where the leak is
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