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Misfire on different plugs

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  • #1

    Misfire on different plugs

    I've been hunting this misfire for a while but something baffles. This is on a R36

    Factory plugs which are NGK ILZKR8A Laser Iridium Spark Plug car misfire on cold till its warmed up

    Ive had Bosch Double Iridium Spark Plug 0242140528 YR6TII330T fitted hardly any misfire on cold.

    Why is it misfiring on the NGK but not on the Bosch?

    So far new coil packs, air mass meter
    Tags: bosch, iridium, misfire, plug, spark
  • #2
    I know carbon build up on the 3.6L can cause miss fires at cold, it might something to do with that, have you ever had it wallnut blasted?

    Sent from my SM-N960F using Tapatalk
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    • #3
      Originally posted by MIG View Post
      I know carbon build up on the 3.6L can cause miss fires at cold, it might something to do with that, have you ever had it wallnut blasted?

      Sent from my SM-N960F using Tapatalk
      Not as yet but in search in finding a company to do it properly. my concern is why it misfires on the ngk plugs not the bosch?

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      • #4
        Originally posted by bigdaddy786 View Post
        Not as yet but in search in finding a company to do it properly. my concern is why it misfires on the ngk plugs not the bosch?
        Could incorrect gaps be to blame?
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        • #5
          Where abouts in the UK are you? I follow these guys on Youtube and Facebook (very knowledgeable guys) and they do carbon cleaning as well as a whole host of other repairs on VW/Audi vehicles.

          These guys are in Dudley, just outside of Birmingham.

          VAGTechnic Facebook page

          VAG Technic | Contact us | Dudley, West Midlands
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          • #6
            Originally posted by nermal View Post
            Could incorrect gaps be to blame?
            No Ive tried different gap on them still the same.

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            • #7
              Originally posted by Lucas_R View Post
              Where abouts in the UK are you? I follow these guys on Youtube and Facebook (very knowledgeable guys) and they do carbon cleaning as well as a whole host of other repairs on VW/Audi vehicles.

              These guys are in Dudley, just outside of Birmingham.

              VAGTechnic Facebook page

              VAG Technic | Contact us | Dudley, West Midlands
              Im from the west midlands, Yeh ive heard of them, the do carbon cleaning but not wallnut blasting i think, but I one of the reviews on google put me off taking to them.

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              • #8
                Originally posted by bigdaddy786 View Post
                Im from the west midlands, Yeh ive heard of them, the do carbon cleaning but not wallnut blasting i think, but I one of the reviews on google put me off taking to them.
                Might be worth a drive up north to Darkside Developments in Barnsley.
                2017 Ford Fiesta ST the go kart

                2015 Audi SQ5 bi-turbo V6 TDI family hauler

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