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Thread: N63 F02 New Engine , new turbo cartridges, new coils, new injectors, refurbished DME.

  1. #1
    Join Date
    Oct 2017
    Omaha, NE
    My Cars
    2011 BMX X5 Diesel

    N63 F02 New Engine , new turbo cartridges, new coils, new injectors, refurbished DME.

    Hello. New everything. 750 miles on the motor, plugs, turbo upgrade, coil packs. Still misfires, and drivetrain malfunction. Ideas? Only caveat is I gutted the cats. Took to dealer, they told me the DME was bad, so I replaced with data-transferred refurbished DME. Helped a lot with other issues, but still getting misfires. I looked at the coils. Some are dusty-white on the spark plug side.

    If I start off slowly and in sport mode, I won't trigger a misfire. But if there is a significant load, I'll get misfire and then the drivetrain malfunction issue. Also running rich with backfire on deceleration Using 91 octane fuel.

    Thoughts? Thanks!

  2. #2
    Join Date
    Jul 2004
    Houston, TX
    My Cars
    36 Cylinders
    What year is this?

    Is this the Siemens MSD85 DME or the newer Bosch one?

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

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