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Will car pass NCT on 3 cylinders?

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  • 08-11-2017 11:08pm
    #1
    mcgovern25
    Registered Users Posts: 2 ✭


    I have an 04 Mazda 2 and there is a problem with one of the piston rings. I've put 3000km+ on it since this problem started and it hasnt gotten any worse. NCT is up in 2 weeks and I'm wondering the chances of it passing? It shakes when idol but other than that there are no other signs its running on 3 cylinders. No engine lights, overheating and no fuel coming out of the exhaust, however the shaking is very noticeable.
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    #2
    mullingar
    Registered Users Posts: 5,341 ✭✭✭mullingar


    It will fail as the emissions will be all over the place with a high HC level (unburnt fuel)


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    #3
    bazz26
    Registered Users Posts: 51,242 ✭✭✭✭bazz26


    Is it burning oil? If so then wouldn't that push the emissions very high?


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    #4
    Cee-Jay-Cee
    Registered Users Posts: 12,235 ✭✭✭✭Cee-Jay-Cee


    Why are you even driving it????? It’ll be using oil, over fueling and down on power.


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    #5
    Ubbquittious
    Registered Users Posts: 6,213 ✭✭✭Ubbquittious


    Why in the bejaysus would you bring a car like that to the nct at all?


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    #6
    Eric Cartman
    Registered Users Posts: 26,280 ✭✭✭✭Eric Cartman


    Ubbquittious wrote: »
    Why in the bejaysus would you bring a car like that to the nct at all?

    probably to go up on donedeal for 500 quid the next day 'new nct, runs perfect'

    1 post, I call shenanigans on this thread already.


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    #7
    Tommy Ferguson
    Banned (with Prison Access) Posts: 93 ✭✭Tommy Ferguson


    Eric Cartman wrote: »
    probably to go up on donedeal for 500 quid the next day 'new nct, runs perfect'

    1 post, I call shenanigans on this thread already.

    The op should respect your authority


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    #8
    mcgovern25
    Registered Users Posts: 2 ✭mcgovern25


    Its not burning oil either. The car cost me less to buy than it would to get the problem fixed. Yes its down in power but its not over fuelling. I'd like to get another few months out of it if possible as I dont have the money to get a new car. I was thinking it might fail on emissions but if the cylinder is not burning fuel at all then the emissions might be normal. The car has no resale value with such a major problem so I may as well keep it as long as I can as it still drives.


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    #9
    Roger Mellie Man on the Telly
    Registered Users Posts: 1,097 ✭✭✭Roger Mellie Man on the Telly


    Just put it through the test and see what happens, you might pass.


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    #10
    Tuco88
    Registered Users Posts: 1,051 ✭✭✭Tuco88


    Neighbours fiesta passed on 3 cylinders, could hardly get it up to 60km.


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    #11
    nd
    Registered Users Posts: 1,855 ✭✭✭nd


    Disconnect the fuel injector on the cylinder that's not firing. You'd never know.


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    #12
    mullingar
    Registered Users Posts: 5,341 ✭✭✭mullingar


    Id say the Cat is probably destroyed at this stage too


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    #13
    kona
    Registered Users Posts: 7,525 ✭✭✭kona


    nd wrote: »
    Disconnect the fuel injector on the cylinder that's not firing. You'd never know.

    This is your best hope, of course the issue may be a dodgey injector to.begin woth too. Just pull the harness off them one at a time. When theres no change it engine note this will be it bogey cylinder.


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