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Thread: What could be causing?

  
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    d9vmb's Avatar
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    What could be causing?

    My gsi was on the rollers for the first time 2 weeks ago
    and they done 3 power runs

    Each time the bhp graph was the same untill it hit peak power
    then each one went seperat ways

    the operator said i was getting bad boost fluctuation at the top end

    does anyone have any ideas what could be wrong?
    Arden Blue GSI (Now gone)
    White Scooby WRX STI (Now stolen)

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    scott's Avatar
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    boost contol selenoid/ afm maybe ?
    300bhp Focus RS

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    if its a boost control solinoid then drop me a pm mate i may have one
    Ibiza FR CR TDI with 203 BHP

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    Yeah defo solenoid. I had this a little while back but didnt need the rollers as I could feel it changing. Sometimes it boosting too much, sometimes not at all and sometimes it was on and off up the revs...

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    thing is, what one is faulty

    there are two

    one at the front and one at the rear of the engine
    Ibiza FR CR TDI with 203 BHP

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    Front... Unless you can hear it dumping air?

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    lee gsi's Avatar
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    Or change both for the revised item (VXR turbo has the revised one if you have one fitted)
    The truth is always the truth even if you haven't realised it yet...

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    My new LET turbo came with the revised item
    Ibiza FR CR TDI with 203 BHP

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    so how can i check the solenoid? do i just have to try replacing it? or is there someting else i can do

    Also i would have never noticed this problem if it hadent been on the rollers
    so would i have to get it on them again to see if its sorted?
    Arden Blue GSI (Now gone)
    White Scooby WRX STI (Now stolen)

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    I noticed mine while driving but then i use the force and feel at one with my motor lol

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