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Discussion Starter #1
05 Subaru wrx , everything is stock except for an hks bov and Catback I also gutted uppipe. I’m getting boost creep well from what I read online that’s what I have . It happens when I go WOT it hits 15 psi then car starts to jerk for a second. I checked all the hoses , I replaced the turbo inlet . Turbo is rebuilt , the wastegate was checked by the guy who rebuilt my turbo and said it was ok . From what I read online was I would only get boost creep if I have a TBE which I don’t
 

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Æternum
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19,861 Posts
This is probably not boost creep, and you haven't posted anything that can help diagnose.

Datalog the car. A "soft" jerk is likely a fueling issue while the "hard" jerk is often spark related.
 

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Super Moderator (Actually a SuperSpy)
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  • I scanned the car and this code came up P0303
Therefore dismiss any notion of boost creep and troubleshoot instead for misfire, cylindre 3. Methodically go through the following:

 
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