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Hyundai Amica 1ltr engine 2002 misfire

Discussion in 'Car Repairs / Maintenance' started by dcawkwell, 23 Dec 2012.

  1. dcawkwell

    dcawkwell

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    Got a misfire and engine warning light comes on when
    I slip into 3rd gear and accelerate more quickly.
    Ease back on the acceleration and it goes away.
    Runs fine when zipping along the motorway at 60mph.

    I have swapped the map sensor with a known good one from another car
    but no difference.
    Spark plugs all seem fairly reasonable.
     
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  3. Belle427

    Belle427

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    if the management light has illuminated it would have flagged a code which you should get read to give you some idea where to go.
    Did you change the map (manifold absolute pressure) or maf(mass air flow) sensor?
     
  4. dcawkwell

    dcawkwell

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    I replaced the sensor at the back of the manifold. It matches the pictures on ebay of the MAP sensor.
    There is another sensor that is near the throttle position sensor.
    I assume this is the maf sensor. Unfortunately the other atoz I have doesn't have the same sensor in the same position so can't swap.
    I have no method of reading the fault codes. Unless there are some cheap devices I could buy to do this. I'm not convinced it would
    tell me the actual cause of the fault.
     
  5. Mursal

    Mursal

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  7. dcawkwell

    dcawkwell

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    No took the plugs out all in good condition.

    I think I will swap the plugs and ht leads just to eliminate those.
     
  8. Mursal

    Mursal

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    Good idea, see how that goes
     
  9. Burnerman

    Burnerman

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    When ou ease back on the throttle, does the management lamp go off too?
    It'll still have logged a fault code though.
    John :)
     
  10. dcawkwell

    dcawkwell

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    Yes once you get up to speed and cruise on the motorway it runs fine
    and engine light goes off.

    I'm thinking I need to give the maf sensor a clean first.
     
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