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  1. #1
    VXRed
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    15th November 2012
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    Default Intermittent boost issue?

    Hi, my car drives fine, however when i push it in 3rd gear and above the boost seems to come on strong then drop off through the rev range then come back, 1st and 2nd gear are fine it boosts all the way through, what could be causing this problem?

    I changed the front boost control solenoid, but didn't make much difference... So annoying

    Cheers!

  2. #2
    VXRed blooded dazchatastra's Avatar
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    11th May 2013
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    Default

    Hi I've been having loads problems wi mine not boosting correctly
    Have you checked all your vac pipe at rear of the inlet manifold ?
    Also check the actutaor holding it pressure as they go weak

  3. #3
    VXRed
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    15th November 2012
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    Its so annoying isn't it!

    Ill check there, and also how can I test the pressure on the actuator?

  4. #4
    VXRed blooded dazchatastra's Avatar
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    11th May 2013
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    Oh Ye it's done my head in lol you need a vac gauge and they work off pressure they should break off at 10 psi
    I put uprated courts one problem solved £145 I think

  5. #5
    VXRed blooded dazchatastra's Avatar
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    11th May 2013
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    Default

    You running car standard or is it mapped ?

  6. #6
    VXRed
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    15th November 2012
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    Default

    a vac gauge cool, and its mapped to stage 2, which i got done at courtney. So you think yours is better since doing it?

  7. #7
    VXRed blooded dazchatastra's Avatar
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    Oh Ye pulls better !!!mines running stage 3 I've change coil pack to that did some odd things at high rpm's was holding back turned out to be faulty but fine just round town !! Prop best to plug it and do a diagnostic check too

  8. #8
    VXRed
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    15th November 2012
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    Hmmm might be worth trying it then! And yea tried an OBD sensor but didn't pick anything up so need to look for another one.

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