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corsa iddling poorly

  • 12-01-2012 7:04pm
    #1
    trixyben
    Registered Users, Registered Users 2 Posts: 416 ✭✭


    car iddling rough past few days, engine management light came on an 02 corsa 1.0, scanned it and got codes p0135 02 sensor and codes p0300 p0301 p0302 misfire codes, would the engine be iddling poorly because the 02 sensor isnt working right and then throwing up the misfire codes? going to replace the 02 sensor tomorrow if get time in mean time hope the misfire problem isnt serious!


Comments

  • #2
    DOHC2000E
    Registered Users, Registered Users 2 Posts: 98 ✭✭DOHC2000E


    I'd check the EGR valve before throwing new bits at it, could cause the symptoms and fault codes you've mentioned. It's a fairly common problem on the older four pot motors and can often be fixed just by cleaning it. Haven't seen a three pot in quite a while and I don't know if it's as common but worth a look.


  • #3
    swhyte027
    Closed Accounts Posts: 419 ✭✭swhyte027


    The O2 sensor is coming up because of the misfire don't worry about that.its more then likely a coil in my experience.


  • #4
    trixyben
    Registered Users, Registered Users 2 Posts: 416 ✭✭trixyben


    swhyte027 wrote: »
    The O2 sensor is coming up because of the misfire don't worry about that.its more then likely a coil in my experience.

    is there any way of testing the coil at all? or even testing the 02 sensor?


  • #5
    Nissan doctor
    Closed Accounts Posts: 8,223 ✭✭✭Nissan doctor


    P0135 is the fault code for a malfunction in the heating circuit of the Lambda. If the misfire was causing the lambda fault then the fault would be the range/performance of the lambda or a system too rich fault.

    If the lambda is not heating correctly then it won't be giving the correct reading to the ECU to match the engine temperature sensor. The P0300 code is for random multi cylinder misfire which, in this case, could be caused by incorrect air/fuel ratio readings from the lambda.

    On a corsa, if the coilpack fails you will get a code for one specific cylinder.

    The live data readings from a decent diagnostic computer will allow you to see the signals from each component and see what is or isn't within range.


  • #6
    trixyben
    Registered Users, Registered Users 2 Posts: 416 ✭✭trixyben


    plugged car up again today and the p0135 code has gone and the p0300 p0301 and p0302 is still there so would ya say the 02 sensor is playing up and throwing up the misfires? dont want to be thrpwing parts into this car as its due for test at end of the month and then its being sold


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  • #7
    trixyben
    Registered Users, Registered Users 2 Posts: 416 ✭✭trixyben


    just bumping this one up again....

    same as before 02 sensor code now gone and misfire codes just there now so would it be the coils?


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