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Thread: Engine check light

  1. #1
    Join Date
    Aug 2012
    Location
    Canberra, ACT
    Posts
    148

    Engine check light

    More fun this last weekend. On the way to Sydney, had the check engine light flicker on and off (not on and fixed)...
    Stopped and checked bay, oil etc. no indication of any issue, and stayed off at lower speed (80-95) so continued on.
    Left it in Sydney with an issue with some of the coil sets. Seems inconsistent.
    Time hopefully will tell and be resolved.

    Has over 66k kms, almost no issue prior to this.

    Skoda roadside were great - organised the tow, arranged a hire car (high one way cost, but at least transport) and offered to return the car home when fixed. Hope it doesn't take too long.


    Difinity

  2. #2
    Join Date
    Jul 2012
    Location
    Sinagra, Western Australia
    Posts
    491
    1.2L? Most likely the leads or corrosion in the coil itself.
    Volks Handy
    Servicing - Repairs - Diagnostics - Mobile fault scanning/clearing - A/c work
    10 years experience working for Audi/VW/Skoda
    Now in Perth NOR, Western Australia.

  3. #3
    Join Date
    Aug 2012
    Location
    Canberra, ACT
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    148
    Thread Starter
    1.4 twincharge. Dealer says there is oil fouling the spark plugs. Refuse to fix until oil consumption tests completed, but I live 380km/s from where the car is. VAG/Skoda have pulled the plug on the hire car too...


    Difinity

  4. #4
    Join Date
    Aug 2012
    Location
    Canberra, ACT
    Posts
    148
    Thread Starter
    Got the dealers report now:
    Says compression on cyl 1 & 2 is 220 psi, and on 3 & 4 is 210 psi; noting that these are correct to spec.
    All the Briskoda blogs I can find say compression ratio should be 10:1, giving an approx compression standard of 170-180 psi.
    Engine shows oil fouling plugs. Has been 'cleaned' and req oil consumption test.

    I'm not sure I can trust the engine again though - if there is oil fouling the ignition sufficiently to shut the engine down into 'emergency mode', it shouldn't matter how much oil is being used - it's in the wrong place!

    Been without the car 5 weeks now and not started to fix yet. Bloody not happy right now...


    Difinity

  5. #5
    Join Date
    Feb 2011
    Location
    Newcastle
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    Users Country Flag
    There were some revised spark plugs to help combat this issue that VW/Audi/Skoda released. The new spark plugs are shorter to move them out of the way of the fuel injector (normally they foul due to fuel spraying on them because they stuck out to far). 1st ive heard of the plugs being fouled with oil though.
    2017 Ford Fiesta ST
    2015 Audi SQ5 bi-turbo V6 TDI family hauler

  6. #6
    Join Date
    Jan 2012
    Location
    Sydney, NSW
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    Users Country Flag
    Spark plugs and a revised oil breather pipe is the solution for CAV engines.

  7. #7
    Join Date
    Feb 2011
    Location
    Newcastle
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    Users Country Flag
    Quote Originally Posted by zei20t View Post
    Spark plugs and a revised oil breather pipe is the solution for CAV engines.
    Plus revised oil squirters for the underside of the pistons.
    2017 Ford Fiesta ST
    2015 Audi SQ5 bi-turbo V6 TDI family hauler

  8. #8
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    May 2008
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    Users Country Flag
    Plus the plugs need to be changed a lot more often than the book says. Like every 30,000km.
    carandimage The place where Off-Topic is On-Topic
    I used to think I was anal-retentive until I started getting involved in car forums

  9. #9
    Join Date
    Aug 2012
    Location
    Canberra, ACT
    Posts
    148
    Thread Starter
    Update:
    Compression suddenly down from 220 psi on cyl 2 to 108. Dealer is now (finally pulling the engine down). 7 weeks on sat and counting...


    Difinity

  10. #10
    Join Date
    Aug 2012
    Location
    Canberra, ACT
    Posts
    148
    Thread Starter

    Still no car. 10 weeks on now. Car is in Canberra, where they found a sudden drop in compression on one cylinder. Have reinstated a hire car until mine is available. Waiting on parts now - not sure which parts but would not be surprised if that means near new engine...


    Difinity

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