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  1. J

    2009 AUDI Q5 EPC and MISFIRE # 4 cylinder

    Here is a video that I used to clean the carbon build up on my Q5.
  2. J

    2009 AUDI Q5 EPC and MISFIRE # 4 cylinder

    The injector was the problem thanks, Replaced # 4 injector and the car runs great. Now I have a little vibration at idle and when is in drive or reverse it vibrates more with no codes.
  3. J

    2009 AUDI Q5 EPC and MISFIRE # 4 cylinder

    Okay I will replace it today, what brand injector should I buy? Thanks
  4. J

    2009 AUDI Q5 EPC and MISFIRE # 4 cylinder

    Compression tested and was all good. All with in 10%
  5. J

    2009 AUDI Q5 EPC and MISFIRE # 4 cylinder

    Okay, What should the compression be at? Thanks
  6. J

    2009 AUDI Q5 EPC and MISFIRE # 4 cylinder

    Plugs was replaced last year. I swap coils 4 to 5, but misfire stayed at #4. I clean the carbon build up on the valves that did not fix the problem.
  7. J

    2009 AUDI Q5 EPC and MISFIRE # 4 cylinder

    Thursday,01,October,2020,20:50:58:61217 VCDS -- Windows Based VAG/VAS Emulator Running on Windows 8 x64 VCDS Version: 20.4.2.0 (x64) Data version: 20200730 DS317.0 www.Ross-Tech.com VIN: WA1KK78R49A027055 License Plate: JOEBOS Mileage: 212510km-132047mi Repair Order: 10/01/2020 Chassis...
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