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Thread: MK4 Astra Engine Management Light?

  
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    SRImon's Avatar
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    MK4 Astra Engine Management Light?

    I do believe the car warning light with the spanner through is engine management?

    If so mines flashes every now and then, and seems to be quite thirsty on fuel...

    Is there a DIY way of checking fault codes, or does it need to be plugged in?

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    This is a reply from a previous thread. I've just just used the info to check out my engine. It worked on my diesel and I replaced the glow plug relay.

    "u can read the fault codes ur self just like u used to on pre2000 models with the paperclip...

    2000 onwards models are even easier...

    When ur ready - I'll begin....

    With keys out of ignition - press both brake & accelerator pedal at same time and keep them pressed to the floor....

    insert key and turn to 2nd click - ignition on but DONT START THE ENGINE

    Keep both pedals pressed throughout the procedure....

    the EML will flash just like previous models using the paperclip

    You will probably find the light flashes 10 times first then a pause then another number, a pause, another number, a pause then another number of flashes.

    I say 10 times for the first one as 10 flashes = a ZERO on the fault code and most engine related faults range from P0001 to P0999

    If for instance u have the following sequence

    10 flashes
    pause
    3 flashes
    pause
    10 flashes
    pause
    10 flashes

    this equals 10,3,10,10 which in turn equates to 0,3,0,0 or P0300 which in turn is "Multiple cylinder misfire"

    10 is the only number that becomes another number
    1-9 flashes remain a 1-9 code if that makes any sense

    do a google with the words "Vauxhall and Pxxxx" (whatever the code is) and see what it comes up with."

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    /\/\/\ That looks very familiar

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    Daryl_mk4 coupe's Avatar
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    iv just dont this on my se2 1.8,and got the following flashes 2-1-10-8-10-4-10.

    Is this normal? Sorry but i dont quite understand what is written above

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    From my understanding a 10 flash = a 0, and anything other than that = the exact number of flashes

    I also was of the understanding that a code was made up of 4 numbers & you've listed 7, so i'm not so sure.

    If we take you first 4 though then it'd be...

    2 = 2
    1 = 1
    10 = 0
    8 = 8

    .... 2108

    Throw that into google and [Throttle Actuator Control Module Problem] gets returned from what i just quickly looked at (i googled "Vauxhall P2108")

    Although don't take my word as gospel as i only started reading this sort of stuff yesterday & someone could come in & tell you i'm wrong, as i could well be. Was just giving you my understanding of what i've read so far

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    Daryl_mk4 coupe's Avatar
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    Well it cant be that serious,as i had it rolling roaded at 123bhp on saturday. But if someone could please comment on what iv found,then that would be great.

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    Can anyone else help with this at all?

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    it may be worth diconnecting the battery for 30 mins to clear any codes and see if any new ones are logged after driving it again as these could be old codes from before you had the car with problems fixed long ago. disconnect the battery properly though or the alarm will go off.

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    Cheers John,il do that when i get to work at 2,see what happens after that.

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