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  1. #1

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    help with error codes vauxhall

    hi guys, i got a opcom vuaxhall lead and diagnostic software for my vauxhall astra 1.8 sri 2003, il tell you my cars symtoms and then write codes up
    when i start my car from cold the tick over is all over, nearly cutting out and sometimes revs up to 1500rpm. if i try to press the accelerator it tried to cut out, when the car gets abit warming when on idle its still all over the place but i can press accelerator fine, then when i drive the car its kanagrooing and wont go over 50mph but sometimes like earlier tonight i **** get above 20 mph,
    so i read the errors codes which will of been stored up for abit and got the following

    Total number of fault codes: 7

    P0170 - Lean Exhaust
    (02) - Not present

    P1555 - Throttle Position Sensor (TPS) Load Signal not Plausible with Engine Load
    (00) - Not present

    P0135 - O2 Sensor Heater Circuit Open (Bank 1 Sensor 1)
    (04) - Not present

    P0110 - Intake Air Temperature Circuit High Input
    (01) - Not present

    P0100 - Mass Or Volume Air Flow Circuit Low Input
    (02) - Not present

    P1525 - Limp Home Position Error
    (00) - Not present

    P1550 - Electronic Throttle Control Engine Stop
    (08) - Not present

    after reading these thats when i went for the drive where i couldnt get over 20mph after about half a mile of drive, when i got back i read codes again and got the following

    Total number of fault codes: 9

    P0170 - Lean Exhaust
    (02) - Not present

    P1555 - Throttle Position Sensor (TPS) Load Signal not Plausible with Engine Load
    (00) - Not present

    P0135 - O2 Sensor Heater Circuit Open (Bank 1 Sensor 1)
    (04) - Not present

    P0110 - Intake Air Temperature Circuit High Input
    (01) - Not present

    P0100 - Mass Or Volume Air Flow Circuit Low Input
    (02) - Not present

    P1525 - Limp Home Position Error
    (00) - Not present

    P1550 - Electronic Throttle Control Engine Stop
    (08) - Not present

    P0302 - Cylinder 2 Misfire Detected
    (01) - Not present

    P0301 - <Unknown DTC>
    (04) - Not present

    i then reset the codes and went round the block and seemed ok, went for abit longer drive and the symptoms came back this time it wasnt the engine management light on it was the little car with a spanner light, so read the codes
    P1555 - Throttle Position Sensor (TPS) Load Signal not Plausible with Engine Load
    (00) - Not present

    then after 10 minutes of idleing and reving up etc i read codes one more time and got the same code p1555

    so not sure whats happening to my car and wondered if anyone on here could help ?
    read on another forunm it might be a good idem to use my opcom software to reset the ecu, not just clear fault codes but theres a button to reset ecu but im not sure if thats ok to do,
    cam amyomen help with this problem ? thanks



  2. #2
    Rs2k_Rider's Avatar
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    Re: help with error codes vauxhall

    Do not know a lot about vauxhalls tbh, but I would say check the connections on the throttle position sensor... if still iffy, change it.

    Seems that the ecu is not reading the throttle position, which is throwing up the other errors with fuelling, misfire etc ....

    could be wrong but makes sense to me
    Live like its your last day, and love like its your first

  3. #3
    charlie senator's Avatar
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    Re: help with error codes vauxhall

    Try disconnecting the mass air flow meter and see if it runs any better mate.
    If it does get a new one
    who was the first person to say,"See that chicken there....Im gonna eat the next thing that comes outta its bum"

  4. #4

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    Re: help with error codes vauxhall

    yeah sounds reasonnable to me what you have just said aswell mate, thanks for that, il give it a check,

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    Re: help with error codes vauxhall

    Quote Originally Posted by charlie senator View Post
    Try disconnecting the mass air flow meter and see if it runs any better mate.
    If it does get a new one
    i can check that now, il see if it makes any difference thanks

  6. #6

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    Re: help with error codes vauxhall

    Check the air intake pipe from the maf to the throttle body for any leaks before changing the sensor.

    thebigman

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    Re: help with error codes vauxhall

    just unplugged the mass air flow and went on a half mile journey and it drove flawlessly, just how it used to, so in morning il give it another check but it dint kangaroo or anything once when i just went round the block then,

  8. #8
    charlie senator's Avatar
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    Re: help with error codes vauxhall

    When i saw those error codes i thought it was that.
    Clear the codes fit a new maf take it for a run and then rescan it.
    who was the first person to say,"See that chicken there....Im gonna eat the next thing that comes outta its bum"

  9. #9

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    Re: help with error codes vauxhall

    Quote Originally Posted by charlie senator View Post
    When i saw those error codes i thought it was that.
    Clear the codes fit a new maf take it for a run and then rescan it.
    thanks mate its been doing my head in just hope this sorts it, ive seen some maf on ebay but i thought i read somewhere u need to get one form vauxhall really, i could be wrong ive done that much reading lately, would ebay be ok or do i really need one form vauxhall

  10. #10
    charlie senator's Avatar
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    Re: help with error codes vauxhall

    I've never fitted an ebay one but i should imagine it would be ok.


    who was the first person to say,"See that chicken there....Im gonna eat the next thing that comes outta its bum"

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