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Thread: Siemens MS41.2 EWS, SAP, and rear O2 removal

  1. #126
    Join Date
    May 2016
    Location
    montana
    Posts
    2
    My Cars
    99 M coupe
    Sorry for the necro-bump, but can someone help me understand why i'm still getting a CEL for my rear 02's? I succesfully pulled my bin, edited it, disabled DTC 79,61 and reflashed new bin... but i'm still getting the CEL for them. Do i need to edit the bin in a hex editor? I don't know what im looking at in the hex file really.
    Just trying to disable SAP, rear 02's. Anyone help me out here?

    Using galletto 1260 to read/flash, and romraider to edit the bin.

  2. #127
    Join Date
    Jul 2004
    Location
    Houston, TX
    Posts
    12,526
    My Cars
    36 Cylinders
    Quote Originally Posted by herm99 View Post
    Sorry for the necro-bump, but can someone help me understand why i'm still getting a CEL for my rear 02's? I succesfully pulled my bin, edited it, disabled DTC 79,61 and reflashed new bin... but i'm still getting the CEL for them. Do i need to edit the bin in a hex editor? I don't know what im looking at in the hex file really.
    Just trying to disable SAP, rear 02's. Anyone help me out here?

    Using galletto 1260 to read/flash, and romraider to edit the bin.
    I replied in RR.
    -Abel

    - 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

  3. #128
    Join Date
    May 2016
    Location
    montana
    Posts
    2
    My Cars
    99 M coupe
    thanks, back at ya.
    Just trying to utilize all resources. Seems there is several ways to disable the DTC, so it's a tad confusing.

  4. #129
    Join Date
    Jul 2019
    Location
    Canada
    Posts
    624
    My Cars
    BMW E39 528i 1998
    Poeman446
    If you're around
    Is this still the way to go?

    "SAP delete has two tables 8 cells long. Axis location references at x32D4h (B0 2D) and x32F8h (C2 2D).
    Axis is 8 bit. x2DB0h and x2DC2h. Both are "30 33 40 47 53 57 79 7C"
    Data is 16 bit. x32D6h and x32FAh. "19 00 9C 04 9C 04 9C 04 9C 04 9C 04 9C 04 01 00" and "19 00 9C 04 9C 04 9C 04 9C 04 9C 04 9C 04 00 00" respectively.
    It seems this "SAP delete method" zeroes out the data bytes to 00h."

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