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Thread: P0234 Error,Remapped Signum 2.8 Turbo

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    Regular Member viper8's Avatar
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    Default P0234 Error,Remapped Signum 2.8 Turbo

    hello guys
    been getting the P0234 error
    ( boost pressure control circuit positive deviation ) present

    have looked at boost pipes and intercooler pipes ,no splits
    and also cleaned boost sensor ( was clean )

    car keeps going into limp mode when accelerating hard .
    it clears when you restart the engine
    but the car seems very slow and slugish


    any ideas anyone

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    Admin plasma's Avatar
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    think soulman had this problem with his when remapped, turns out they needed to sort the mapping out a bit...

    How long ago was it remapped and was it doing it before remapped?
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    Ex RO - East Region soulman's Avatar
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    nope not the Case Dean ....
    mine was running fine but was getting EML on ...

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    Regular Member viper8's Avatar
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    well when it was remapped i had loads of problems with it and the guy was out all the time to redo it ..
    turns out it was the fuel .the muppet did not tell me to use super unleaded fuel .
    i put shell v power in one day
    and it went like a rocket and no limp mode or errors
    boosting perfect

    now a couple of months later i get this error and limp mode

    read another thread on here that it is underboost .

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    Regular Member viper8's Avatar
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    Ex RO - East Region soulman's Avatar
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    he was running a deisel tho ...........
    I would get hold of your mapper again and get him to have a look ....

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    Regular Member viper8's Avatar
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    yes .i just noticed that it was the same problem

    the mapper does not do it anymore

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    Ex Vec-C Admin Deztroyer's Avatar
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    What plugs are you running ?? I'm aware of s e of the owner on vxronline having the same fault and having replaced the boost pressure sensor then had to have their plugs re gapped

    0-Large smile ......every time it's driven

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    Regular Member luke4487's Avatar
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    Do you have the auto? Is it a possibility it could be the box? I had new plugs when I had mine remapped and no problems as thats what is advised... may well be the case - I also went for Denso iridium ones for Turbo performance engines which were set differently to the normal ones...

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    Regular Member viper8's Avatar
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    Deztroyer
    i have not got a clue what the plugs are in the car

    what would you advise putting in


    have you a link to the thread

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