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ODBC Codes on VW Golf MKIV

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  • 01-09-2011 6:46pm
    #1
    golfbgud
    Registered Users Posts: 533 ✭✭✭


    Hi All,

    Investigating an issue with a friend on a '00 1.4 MKIV Golf with over 100k miles.

    Coming up with the following:

    16804 and 16518

    Any clues? I did pull the code descriptions off the web but there's a lot of possibilities there (most are CAT related).

    Thanks.
    Tagged:


Comments

  • Options
    #2
    spiggotpaddy
    Registered Users Posts: 870 ✭✭✭spiggotpaddy


    16518 P0134 O2 Sensor Circ.,Bank1-Sensor1 No Activity Detected
    16804 P0420 Catalyst System,Bank1 Efficiency Below Threshold

    looks like you need a new o2 sensor


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    #3
    golfbgud
    Registered Users Posts: 533 ✭✭✭golfbgud


    spiggotpaddy wrote: »
    16518 P0134 O2 Sensor Circ.,Bank1-Sensor1 No Activity Detected
    16804 P0420 Catalyst System,Bank1 Efficiency Below Threshold

    looks like you need a new o2 sensor

    Sorry - I should have mentioned that the O2 sensor was already replaced!
    (Unless it's gone faulty already)?


  • Options
    #4
    McP2011
    Registered Users Posts: 213 ✭✭McP2011


    It could be an o2 sensor/wiring...what is the car running like?


  • Options
    #5
    spiggotpaddy
    Registered Users Posts: 870 ✭✭✭spiggotpaddy


    were the fault codes cleared, after the new sensor was fitted. and as already said hows the car running, whats the problem?


  • Options
    #6
    tossy
    Registered Users Posts: 9,587 ✭✭✭tossy


    As paddy said the fault codes could be left overs from the old sensor,have the been reset since? was the sensor you fitted new/second hand/genuine/spurious?


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  • Options
    #7
    golfbgud
    Registered Users Posts: 533 ✭✭✭golfbgud


    Sensor was new.
    Codes were all cleared (twice).
    Starts and drives but dies the odd time (and recovers).....
    I believe that it was a genuine sensor but will double check over the week-end.


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    #8
    spiggotpaddy
    Registered Users Posts: 870 ✭✭✭spiggotpaddy


    have you had the throttle body cleaned? only takes a few minutes, could be lucky.


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