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Thread: Inconsistent Boost

  1. #1
    Join Date
    Jul 2008
    Location
    Wattle Grove, NSW
    Posts
    90
    Users Country Flag

    Inconsistent Boost

    Hi All,

    I have a 1.4 TSI (90kw - turbo only) and have notice the boost to be very inconsistent lately,

    I have a auto-meter mechanical boost gauge and it would normally read between 8-10psi

    Last week it felt a little flat and I noticed the boost to be a little low 5 psi, didn't think much of it,

    Car didn't get driven over the weekend the yesterday (Monday) car felt super punchy and low and behold it's running 12-13psi (I wasn't to upset by this as the drive was much more fun)

    Today (Tuesday) is running 10psi

    Does this sound like a dodgy N75 valve?

    Engine is stock with a K&N OEM style air filter and a GFB DVS+ divertor valve

    Any advise/trolling is welcome
    Chris aka TSi2NV.
    MK6 Golf 90TSi.
    MODS: 20% tints, H&R Lowering Springs (45mm), 18" rims

  2. #2
    Join Date
    May 2018
    Location
    Darwin
    Posts
    10
    Users Country Flag

    Quote Originally Posted by TSi2NV View Post
    Hi All,

    I have a 1.4 TSI (90kw - turbo only) and have notice the boost to be very inconsistent lately,

    I have a auto-meter mechanical boost gauge and it would normally read between 8-10psi

    Last week it felt a little flat and I noticed the boost to be a little low 5 psi, didn't think much of it,

    Car didn't get driven over the weekend the yesterday (Monday) car felt super punchy and low and behold it's running 12-13psi (I wasn't to upset by this as the drive was much more fun)

    Today (Tuesday) is running 10psi

    Does this sound like a dodgy N75 valve?

    Engine is stock with a K&N OEM style air filter and a GFB DVS+ divertor valve

    Any advise/trolling is welcome
    Could be a faulty MAP sensor
    Rising Blue, MK 6 R 2013 - DSG - CTS Cat200, Tarmac CAI, Tarmac Heat shield, do88 intercooler, R8 Coils, XB Unibrace, Ub Unibrace, CTS Dogbone, H&R Sport Springs, Spectune stage 2.

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