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Log review for 2022 M3 xdrive (drivetrain malfunction)

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  • Log review for 2022 M3 xdrive (drivetrain malfunction)

    Terry @ BMS George @ BMS

    Terry/George
    I ran a few yesterday and I'm struggling with a drivetrain malfunction it seems.

    The attached log has a number of runs, the middle pulls were from a dig using launch control on my 2022 M3 xdrive. 2nd gear launch and when I came up to about 127mph, the car would throw the malfunction. These were Map 3, E30 mix here in Colorado.

    I tested Map 0 the 2nd to last run, no issues and the last pull in the file was testing Map 2, no issues.

    v9 firmware.

    P46_M3_R18_220915_1136.csv

    Any thoughts?

    For a visual, you can see my first 2 dragy pulls (both Map 3) , it just levels off at the end when I get the malfunction. Then the third dragy pull, no malfunction in Map 2​:
    Click image for larger version

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  • #2
    Looks like you are overboosting a fair amount. Let's try and get that resolved first. Go ahead and disable bit 1 to turn FF learning back on.
    Burger Motorsports
    Home of the JB4 the worlds most popular turbocharged tuning system!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

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    • #3
      Thank you Cannon @ BMS, will do and report back.

      Comment


      • #4
        What's the fault code, exactly?
        Burger Motorsports
        Home of the JB4 the worlds most popular turbocharged tuning system!

        It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

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        • #5
          Originally posted by Terry @ BMS View Post
          What's the fault code, exactly?
          Hello terry. I read codes immediately after it happened. No codes came up. Turned off the car and back on. CEL gone.

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          • #6
            Hey fellas. Still the same in map3 with bit 1 turned off per Cannon’s request. Malfunction at about 125 mph. Map 2 works fine. Still no codes, read them right after.

            P46_M3_R7_220918_0809.csv

            Click image for larger version

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            • #7
              Let's try a Map 6 with a 5.5psi additive in all boxes rather than absolute numbers.
              Please start a new log with no old logs.
              Thanks!
              Burger Motorsports
              Home of the JB4 the worlds most popular turbocharged tuning system!

              It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

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              • #8
                You have a 4 bar tmap installed? TMAP is set to 2.

                Click on our banner to visit our website!
                Video of our Stage 2 LPFP upgrade installation.

                BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways.

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