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Thread: Fault code and limp mode

  1. #1
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    Vehicle : vectra

    Trim : vxr

    Engine : 2.8 v6 turbo

    Year : 2007

    Default Fault code and limp mode

    long story short we fitted a boost gauge in peelmeisters vxr works perfect vac and boost but in 3 rd gear give it a hand full then limp mode it has had a remap we have changed all the pipein bak for hard stuff and it still happens he is also gonna try diffrent fuel the code was p0234 anyone help please

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    Regular Member gibbon7000's Avatar
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    Has only started since the boost gauge was fitted?

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    Have you checked for a split vacuum hose ?

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    no mate actually we havnt but it holds boost in 1st and 2nd perfect

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    Regular Member spennny's Avatar
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    Yep but when the boost really kicks in that's when it fails , it may have been waiting to happen and you could have just given it some encouragement

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    yep that is a good point mate to behoest probaly the next job then after all that work on the brakes and so on i was knackered lol

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    Regular Member Ste's Avatar
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    P0234 Engine Overboost Condition.

    Too aggressive on the VGT?

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    just to add to this, not only does it go in limp mode when giving it some in 3rd - it also happens when cruising at a steady 70-80 on motorway. When you pull out to overtake and push the accelerator a little harder, and i mean a LITTLE, it will then go into limp.

    Even when the boost gauge is by passed and not connected the limp mode still happens.

    Im currently running on Esso's premium unleaded which i think is 97 RON. Going to try 99 RON if I can find an outlet to see if this has a bearing.

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    Regular Member disco dan's Avatar
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    I remember when courtenay sport remaped my coupe to turbo, they made me promise to only use 99ron petrol.

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    ste whats a vgt lol ans dan thats what i said my old coupe turbo hated 97 ron i also think viper had the same problem

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