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Thread: z20let juddering on pick up???

  
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    mib gsi turbo's Avatar
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    z20let juddering on pick up???

    hi there,hopefully you guys can help me,when im exelerating the car some times judders its only at low revs and its ok when the turbo comes in and it starts to build speed up,ive sofar put new iridium spark plugs in and no change?? it worse under load
    the mods i have done are,
    veccy c intake pipe
    derestricted air box
    9 liter intercooler
    power pipe with dv
    back box
    18"alloys
    use to drive arden blue gsi turbo.now sold
    239 bhp and 244 lb/ft
    bought astra cdti xp 150

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    BenC's Avatar
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    coil pack or plug gaps
    Corsa C LEH 4x4?

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    Turbo_Scott's Avatar
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    Plug gaps? I think the GSI is a standard mapping so therefore he'll be using the standard NGK Iridium plugs from sparkplugs.co.uk

    I assume that should be fine?
    Fastest, Most Powerful & Only Mag Featured Astra In The AOC Cumbrian Region

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    spg's Avatar
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    i had this turned out to b the map sensor on top ov intercooler

    it was showing 120 degrees where on tech 2 it was showing 40 degrees at idle, changes tha all is good

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    turboed's Avatar
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    Possible amm, checked for any leaks

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    mib gsi turbo's Avatar
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    thanks ppl il check all the sugestions out.
    use to drive arden blue gsi turbo.now sold
    239 bhp and 244 lb/ft
    bought astra cdti xp 150

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