which line to plug on intake inlet and/or purge control valve?
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This is a discussion on which line to plug on intake inlet and/or purge control valve? within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; im getting 16.8 psi when target boost is 18 psi. thought it was close enough, but heads here were nice ...

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    rocking hater blockers unseen's Avatar
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    which line to plug on intake inlet and/or purge control valve?

    im getting 16.8 psi when target boost is 18 psi. thought it was close enough, but heads here were nice enough to let me know this may not be the case. so in addition to just having piece of mind, i would like to run a boost leak test. boost leak tester will go on intake inlet, and i was just wondering which of these need to be plugged as well? or anything else that needs to be plugged.

    for reference to my pic:
    green arrow is to intake inlet
    red circles are to intake inlet
    blue circles are to purge control (i believe, correct me if im wrong)

    thanks for you help guys.

    Click image for larger version. 

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    Supporting Member livid_wrx's Avatar
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    That's a odd green.

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    rocking hater blockers unseen's Avatar
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    Quote Originally Posted by livid_wrx View Post
    That's a odd green.
    haha thanks for the feedback. i call it cactus.
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    Supporting Member livid_wrx's Avatar
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    Any time

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    rocking hater blockers unseen's Avatar
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    i know im supposed to cap the nipple of intake manifold but cannot find the purge valve for the life of me. its kind of looks like bpv right? i do not see that anywhere near the left of my alternator.
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    Master Baiter EJ257's Avatar
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    Post a pic of your engine bay from a bit further out
    2005 WRX STi (Mods | Virtual Dyno)

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    rocking hater blockers unseen's Avatar
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    here you go. hope its far back enough. Click image for larger version. 

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    rocking hater blockers unseen's Avatar
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    Quote Originally Posted by unseen View Post
    Click image for larger version. 

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    i think i figured some of it out.

    the second red circle is connected to the purge solenoid found at the second small blue circle. so i'll undo that connection and plug it at the intake/turbo inlet. this one im most certain of.

    the first red circle is less concrete to me, but i believe this leads to the pcv right in front under the intake manifold. i will also plug this at the intake/turbo inlet.

    the last, rightmost red circle i believe is to the crankcase breather which runs under and then parallel to the intake manifold on the backside. now i do not know how to gain access to this. there is a clamp on it, but it seems rather cramped underneath the purge solenoid. if anyone knows how to get it disconnected, please let me know.

    also, if anyone can confirm this is all correct, thatd be great. thanks for your time guys.
    stinkeye member #976

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