+ Reply to Thread
Results 1 to 2 of 2

This is a discussion on Help!!!.. within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; So I replaced the turbo inlet pipe (old one was torn) also replaced some old brittle vacuum lines (running from ...

  1. #1
    Registered User
    Join Date
    Sep 2008


    So I replaced the turbo inlet pipe (old one was torn) also replaced some old brittle vacuum lines (running from wastegate to manifold etc.) and also I had to replace the power steering pump.

    OKAY, heres the issue, I was seeing about 11 PSI prior to repairs, now i'm only seeing max 9.5 PSI. I have a basically stock 02 WRX with borla cat back. Also there is a stupid effing BOV from the previous owner which is of course not re-circulating (dont ask me why)...

    I am not quit sure what stock boost should be (i've heard a few numbers thrown around)

    I suspect it may be either the restricter pill is gone - If so, would this cause boost to not exceed 9.5 PSI??

    OR maybe a faulty BOV and it's opening premature??

    Also, when at a stand still, idling, when turning my steering the vacuum seems to go to -10 -- Is this normal?? and what should stock vacuum be?? (-15?)

    Last edited by 02WRX*801; 08-30-2009 at 10:20 AM.

  2. Remove Advertisements

  3. #2
    Registered User
    Join Date
    Sep 2008
    OKay, update --

    So THANKGOD I didn't loose the vacuum hose containing the restrictor pill... the line was still in good condition, so I put that back on.

    The boost is now spiking at 15psi then fluctuating between
    10-15psi.. the needle on my boost guage just bounces back and forth.. it's so weird. It sometimes will spike at 15 then steady out at 10-11psi... but it's really just intermittent..

    ?????? Anything from anybody will help... my only thought is that maybe the BOV is faulty... One 3rd gear pull I hit 15psi without hearing any release from the BOV... I dont know..

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself. We strongly suggest that you stay away from using aol, yahoo, msn, and hotmail accounts. Sometimes the mail server blocks the emails from our server. As a result you will not receive any notifications including the confirmation email.

Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts