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Thread: INPA Won't Communicate with E46

  1. #1
    Join Date
    Aug 2015
    Location
    Santa Barbara, CA
    Posts
    240
    My Cars
    '02 330i

    INPA Won't Communicate with E46

    I have INPA loaded on a Macbook Pro with a Windows drive and used it many times on my M Coupe (Z3). There's a very comprehensive post on the M Coupe forum on how to set it up and run it. I had to buy a new cable 'cause I gave my original one away when I sold the Coupe. I cannot get the laptop to communicate with the E46. Another poster told me I needed to load different drivers for the E46, but I don't know which ones, and how to load them. I cannot find a really comprehensive post in this forum (E46) on how to make INPA work.

    Anyone have any ideas on what drivers to use, or are they the same for (Z3) M Coupe and E46 , or ? Thanks, Don

  2. #2
    Join Date
    Apr 2009
    Location
    Vancouver Isl, BC, Canada
    Posts
    4,173
    My Cars
    98 Euro M3, 04 M3, 06 M5
    What cable are you using?
    Current:

    - 09 335i MSport, FBO.
    - 98 Euro M3, Estoril Blue
    - 04 M3, Carbon Black, 6 Speed Coupe
    - 06 M5, Black on Black, Full Leather.
    - 73 3.0CS, Tagia Green, 5 speed M30b35 converted

    Ex's: 1984 325e, 1988 325IX, 1992 525I, 1995 540i/6, 2002 330i, 2005 330xi, 1992 850i, 2003 330i #1, 2003 330i #2, 2002 330ci, 2004 330ci, 2007 328CI, 2007 335i, 2001 M3, 2006 M5 6 speed

  3. #3
    Join Date
    Jan 2009
    Location
    Chicago, IL
    Posts
    431
    My Cars
    2001 330i and 2005 330i
    +1 to legoman. the version I'm running was finnicky regarding the cable. It has to be in the exact same USB port each time or the software is a no-go. the driver wants to treat the port as an RS-232 serial port. It's prolly just the cable but you may need to re-install the software after hooking up the new cable.
    Johnny Murray

  4. #4
    Join Date
    Jan 2015
    Location
    Timaru, New Zealand
    Posts
    1,132
    My Cars
    Two Z3 Roadsters
    Are the computer (use device manager) and INPA (INPA.cfg) cable com port settings the same? This is he biggest problem with setting up INPA. You have a different cable and it may no be aligned.

    Also, pins 7 and 8 need to be shorted to allow INPA to talk to all E46 modules.
    Last edited by Muzz258; 11-11-2018 at 03:31 PM.
    1999 2.8L Z3 Roadster,
    2000 3.0L Z3 Roadster,

    There is only one thing more pleasurable than working on a Z3, that's driving it top down on a fine day.

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