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Misfire errors please help!

  • 26-06-2014 2:36pm
    #1
    Curry Addict
    Registered Users, Registered Users 2 Posts: 1,274 ✭✭✭


    My car, 2.2L 6 cylinder, 110,000miles is giving misfire errors on cylinders 2 & 5. she is running pretty poorly.
    I need to help to determine the best next steps i can take to figure this one out.

    so far i have....

    - replaced the spark plugs.
    - swopped cylinder 2 and 5 coil packs with cylinder 1 and 3.
    - checked the intake air boots etc, new air filter installed 4 months ago.
    - oil level is fine and was serviced 4 months ago.
    - removed and cleaned the fuel injectors and their receptacles.
    - swopped cylinder 2 and 5 injectors with cylinder 1 and 3.

    Missfire errors are persisting on cylinder 2 and 5. She will error at idle or under load.

    I would appreciate some ideas for what to do next...


Comments

  • #2
    kfog
    Registered Users, Registered Users 2 Posts: 96 ✭✭kfog


    Have you had a compression test done or swapped the leads?


  • #3
    biko
    Registered Users, Registered Users 2 Posts: 81,220 ✭✭✭✭biko


    So even if you swap coils over it still misfires on the same cylinders?


  • #4
    Curry Addict
    Registered Users, Registered Users 2 Posts: 1,274 ✭✭✭Curry Addict


    biko wrote: »
    So even if you swap coils over it still misfires on the same cylinders?

    if i swop the coils or anything else the misfires persist on the same cylinders 2&5.

    the leads look fine i checked the wiring etc and im happy they are good.

    a compression test is a good idea i have that noted thanks. I want to make a plan and go through step by step so i don't miss anything and do it in the best possible order rather than just flap around :)


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