Adnormal Combustion
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    1. #1
      Junior Member
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      Adnormal Combustion

      I have a 2003 Volvo T5 with 395000km . The car runs good however the other day the engine light started to flash that I understand means an ADNORMAL COMBUSTION or gas air mixture problem I think. Is there a sensor that controls the air fuel mixture?
      Dave T.

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    3. #2
      Member TGO's Avatar
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      Flashing CEL is a misfire. On a car that age I would suspect coil. Or the wiring for one of the coils has become brittle and lost it's sheathing and is making a short.
      2002 XC70 2.4T - "Orca"
      White/Sand(Beige)

    4. #3
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      Ok, thanks for the info

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    6. #4
      Senior Member ScottishBrick's Avatar
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      Check/replace spark plugs. T5 eat plugs, I do mine every 20k.
      2003 V70 T5 - Mystic/Graphite - M56LK - 197k - K24/Greens/Do88 IC/SMF & P2R Clutch/DW300C/H&R/Bilstein TC/Delrin/316mm & 308mm Brakes - SteveO Tuned
      1999 V70 T5 - Pewter/R Graphite & Alcantara - AW42 - 291k - Daily/Work Wagon
      1999 V70 T5 - Nautic/R Graphite & Alcantara - M56H - 174k - Rescued
      1999 V70 T5 - Emerald/Graphite - M56H - 119k - Garage Queen
      2000 V70 T5 - Mystic/Graphite - AW42 - 238k - Moms Unicorn
      2000 S70 GLT SE- Mystic/Graphite - AW42 - 212k - Sisters

    7. #5
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      Thanks

    8. #6
      Senior Member ScottishBrick's Avatar
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      Dec 2014
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      Connecticut
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      FYI plug is a FR7DPP+ if you dont want to spring for genuine volvo. Price isnt much different but it has to be the double platinum version.
      2003 V70 T5 - Mystic/Graphite - M56LK - 197k - K24/Greens/Do88 IC/SMF & P2R Clutch/DW300C/H&R/Bilstein TC/Delrin/316mm & 308mm Brakes - SteveO Tuned
      1999 V70 T5 - Pewter/R Graphite & Alcantara - AW42 - 291k - Daily/Work Wagon
      1999 V70 T5 - Nautic/R Graphite & Alcantara - M56H - 174k - Rescued
      1999 V70 T5 - Emerald/Graphite - M56H - 119k - Garage Queen
      2000 V70 T5 - Mystic/Graphite - AW42 - 238k - Moms Unicorn
      2000 S70 GLT SE- Mystic/Graphite - AW42 - 212k - Sisters

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