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Failed high idle CO emissions

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  • 05-09-2018 11:54am
    #1
    lawred2
    Registered Users Posts: 24,270 ✭✭✭✭


    All other emissions tests passed just the CO at high idle..

    0.6% against required 0.2%

    Had dipetane in tank for last few months so not that.

    Possible cat failure?


Comments

  • Options
    #2
    Alanstrainor
    Moderators, Motoring & Transport Moderators Posts: 23,157 Mod ✭✭✭✭Alanstrainor


    If only we knew what car this was...


  • Options
    #3
    lawred2
    Registered Users Posts: 24,270 ✭✭✭✭lawred2


    Sorry, didn't realise that the make of car would really make much of a difference?

    It's a golf mkV petrol 1.4 80bhp


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    #4
    barneygumble99
    Registered Users Posts: 4,120 ✭✭✭barneygumble99


    lawred2 wrote: »
    Sorry, didn't realise that the make of car would really make much of a difference?

    It's a golf mkV petrol 1.4 80bhp

    Burning oil?


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    #5
    lawred2
    Registered Users Posts: 24,270 ✭✭✭✭lawred2


    barneygumble99 wrote: »
    Burning oil?

    What would give that away? Black smoke? Smell etc?

    Nothing remarkable on that front. And oil levels don't seem to be reducing at any abnormal rates..


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    #6
    biko
    Registered Users Posts: 81,223 ✭✭✭✭biko


    It's always good to know what car/year/fuel type it is as brands have their quirks, and if someone with same brand had a similar issue it would help you


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  • Options
    #7
    lawred2
    Registered Users Posts: 24,270 ✭✭✭✭lawred2


    Well after failing a retest, ordered a replacement front cat.

    In the process of changing it, took the original one off and found the thing empty. No honeycomb whatever. So either some previous clown of an owner banged out contents which seems unlikely or it got worn down to nothing and blown out the back.

    Either way, one would have to suppose that's why it was failing for high CO emissions.

    Anyone ever seen the contents of a cat completely emptied out where force was not involved?

    Another retest later this week so will find out if that was indeed the issue.


  • Options
    #8
    mikeecho
    Registered Users Posts: 5,040 ✭✭✭mikeecho


    lawred2 wrote: »
    Well after failing a retest, ordered a replacement front cat.

    In the process of changing it, took the original one off and found the thing empty. No honeycomb whatever. So either some previous clown of an owner banged out contents which seems unlikely or it got worn down to nothing and blown out the back.

    Either way, one would have to suppose that's why it was failing for high CO emissions.

    Anyone ever seen the contents of a cat completely emptied out where force was not involved?

    Another retest later this week so will find out if that was indeed the issue.

    Get whoever replaced the cat to do an emissions test..


  • Options
    #9
    lawred2
    Registered Users Posts: 24,270 ✭✭✭✭lawred2


    mikeecho wrote: »
    Get whoever replaced the cat to do an emissions test..

    I replaced the CAT.


  • Options
    #10
    mikeecho
    Registered Users Posts: 5,040 ✭✭✭mikeecho


    lawred2 wrote: »
    I replaced the CAT.

    And are the emmisions still high after a cat change ?

    I had a 1.4 mk iv golf... Never again.

    They burn oil, and have chocolate gear boxs,

    Might be time to cut your losses


  • Options
    #11
    lawred2
    Registered Users Posts: 24,270 ✭✭✭✭lawred2


    mikeecho wrote: »
    And are the emmisions still high after a cat change ?

    I had a 1.4 mk iv golf... Never again.

    They burn oil, and have chocolate gear boxs,

    Might be time to cut your losses

    Retest is Thursday

    I'd be very surprised if the CO levels are still high to be honest. The CO levels were only 0.6% with an empty space for a CAT. Failure line is 0.2%. All other readings were comfortably inside the requirements.

    Other than the emissions the car is running very well. Only needs to do about 5k a year so more than serves the purpose.

    I'd love to know whether the innards of a CAT disappearing entirely is a regular occurrence..


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  • Options
    #12
    mikeecho
    Registered Users Posts: 5,040 ✭✭✭mikeecho


    lawred2 wrote: »
    Retest is Thursday

    I'd be very surprised if the CO levels are still high to be honest. The CO levels were only 0.6% with an empty space for a CAT. Failure line is 0.2%. All other readings were comfortably inside the requirements.

    Other than the emissions the car is running very well. Only needs to do about 5k a year so more than serves the purpose.

    I'd love to know whether the innards of a CAT disappearing entirely is a regular occurrence..

    I highly doubt that an entire platinum honeycomb block spat it's way out of the exhaust on its own.

    I would suspect that the previous owner had it gutted in an attempt to give the car a few extra bhp.

    The 1.4 mk4 was a pathetic gutless car.
    Only ever useful for tipping about town.

    A good solid car.. but far too heavy for such a small engine. (I did like mine.. but jebus.. Was it completely underpowered )

    I'm glad it's long gone.


  • Options
    #13
    lawred2
    Registered Users Posts: 24,270 ✭✭✭✭lawred2


    mikeecho wrote: »
    I highly doubt that an entire platinum honeycomb block spat it's way out of the exhaust on its own.

    I would suspect that the previous owner had it gutted in an attempt to give the car a few extra bhp.

    The 1.4 mk4 was a pathetic gutless car.
    Only ever useful for tipping about town.

    A good solid car.. but far too heavy for such a small engine. (I did like mine.. but jebus.. Was it completely underpowered )

    I'm glad it's long gone.

    ah yeah - it only goes up and down to the DART park and ride.

    If it was actually forceably removed then I seriously doubt whatever fool did that was overly impressed with the added 'grunt'


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    #14
    mikeecho
    Registered Users Posts: 5,040 ✭✭✭mikeecho


    lawred2 wrote: »
    ah yeah - it only goes up and down to the DART park and ride.

    If it was actually forceably removed then I seriously doubt whatever fool did that was overly impressed with the added 'grunt'

    Its a grand comfortable car for tipping about town, i hope your mechanic can fix it.

    Maybe it needs an Italian tune up.. take it for a blast to newry in 4th,... stock up on wine &spirits.


  • Options
    #15
    lawred2
    Registered Users Posts: 24,270 ✭✭✭✭lawred2


    Flew through the retest with the replaced CAT


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