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Thread: Z20let Fault Codes

  
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    mk4gsi-turbo's Avatar
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    Unhappy Z20let Fault Codes

    Just got my astra back on the road and then I get the light on. Does anyone have any idea what these codes are?

    P1243
    P1106

    My mate has plug his snap-on diag tool in and this is what it cam up with. The first code comes straight back on again when the codes are cleared and the second code appears when driving on boost. Then the boost is switched off and it stays like that.

    ALSO: Just to confirm with anyone who know on here, The car with a spanner through it is an engine management fault (thats what stays lit) and the old ECU light is just for the emission. Is that correct?

    I had the AA out today and they couldnt even get the codes up!

    Any help appreciated people!!!

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    P1106 boost pressure donor signal is not in the target area C-031

    P1243 turbocharger bypass solenoid valve voltage too large C-033
    P1243 turbocharger bypass solenoid valve voltage too small C-033
    P1243 turbocharger bypass solenoid valve open circuit C-033
    P1243 turbocharger bypass valve not in the target area C-033

    These are for the MK5 but i'm sure they would be the same for the MK4 as it's the same engine right?
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    new boost control solenoid required then is it?
    Aerospace NDT LvlII Technician En4179/Nas410.
    Certified, qualified Crack tester :P

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    mk4gsi-turbo's Avatar
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    which one is it relating to? the one that is bolted onto the turbo or the one behind the engine next to the vacuum chamber? If its the latter then oh s**t because Ive removed all that and chucked it! Is there anyway to bypass this?

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