How are cylinders numbered on a Ferrari 599gtb? | FerrariChat

How are cylinders numbered on a Ferrari 599gtb?

Discussion in '612/599' started by Jay Hova, Feb 1, 2023.

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  1. Jay Hova

    Jay Hova Rookie

    Jun 20, 2020
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    Full Name:
    Jay Hova
    #1 Jay Hova, Feb 1, 2023
    I am getting sporadic misfires error codes on cylinders 10-12 but the engine runs fine with no hint of actual misfires.

    Where are cylinders 10, 11, and 12?


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  2. DZ-96

    DZ-96 Formula 3
    Silver Subscribed

    Mar 7, 2010
    1,782
    South Germany
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    Daniel
    #2 DZ-96, Feb 1, 2023
    LHD cars, driver's side front is 12, co driver's side front is 1

    Daniel
     
    Jay Hova likes this.
  3. sammyf

    sammyf Karting

    Aug 13, 2004
    211
    #3 sammyf, Feb 1, 2023
    Jay, what a coincidence! Also chasing an intermittent mis-fire on 10 and 12 (mostly 10 though) on my 2008 US Spec 599. Car also feels strong, but a 600hp V12 makes it hard to really feel anything using the butt dyno.

    We've swapped coils and plugs and it stays on cylinder 10. We did a smoke test on the intake and exhaust side and found a badly leaking dipstick o-ring and a tiny wisp coming from MAF electrical connector. We also did find more motor oil than expected in the airbox->MAF intake tract so most likely engine was overfilled at some point. Boroscope and compression test did NOT reveal issues with the cylinder walls. Went to go swap injectors and found motor oil at some of the injector electrical connections and NO where else. Anyone see this before? Was it just a sloppy job by the previous mechanic who replaced the valve cover gaskets or something more? Found oil in 9 of the injectors connection points (12,11 and 2 were clean and dry):

    https://youtube.com/shorts/b9Hp3HIAkQQ?feature=share
     
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  4. Jay Hova

    Jay Hova Rookie

    Jun 20, 2020
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    Jay Hova
    #4 Jay Hova, Feb 1, 2023
    Did you resolve the problem? I can drive the interstate for hours, no problem. Stopped in city traffic, with a warm engine, check light comes on (a lot now). Seems like the engine check light only comes on at idle. Sometimes it even goes off by itself!
     
  5. sammyf

    sammyf Karting

    Aug 13, 2004
    211
    #5 sammyf, Feb 2, 2023
    Still working on it... Very similar symptoms, I only seem to get it when slowing/stoping for stop light after driving for a while. It has also disappeared and then reappeared a few times for me as well. How many miles yours? Mine has 34k...
     
  6. sammyf

    sammyf Karting

    Aug 13, 2004
    211
    #6 sammyf, Feb 28, 2023
    Just to close on this... engine was overfilled ~1.5liters. After removing excess oil, cleaning the intake tracts, REPLACING the MAF's and cleaning up the oil in the injector electrical connections. Have not had any mis-fire issues for ~150 miles of city driving.
     
    George Vosburgh likes this.

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