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Trailing Throttle and Fuel Cut XDF Tables

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Trailing Throttle and Fuel Cut XDF Tables


  • Author CarAbuser
  • Uploaded 11-25-2019, 08:09 AM
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I've defined some extra tables that would be useful for people that want exhaust burbles that don't use MHD, or people like me that use MHD but like having full control over their custom tune.

I'll upload the XDF definitions for:
I8A0S
IJE0S
INA0S

The INA0S XDF is a cleaned up version of my personal XDF that also has the full throttle correction definitions added.

I'm open to any feedback or bug fixes, defining tables between multiple ROMS leaves plenty of room for copy paste errors. I've tested the XDF tables for INA0S since that's what my car run on. Someone with I8A0S tested the burble tables and said everything worked well.

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Version: 1.0



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Version: 1.0



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Version: 1.0

  • Dean@RFP's Avatar
    Dean@RFP -
    Actually only Stage 3 has it. I slightly manipulated the fuel for other maps to make the growling sounds on deceleration, timing remained the same
  • Sticky's Avatar
    Sticky -
    Quote Originally Posted by Dean@RFP View Post
    Actually only Stage 3 has it. I slightly manipulated the fuel for other maps to make the growling sounds on deceleration, timing remained the same
    Haven't you been doing some Supra tuning too? Care to upload anything B58 related? I'd love to create a section for it.
  • VemsedE36's Avatar
    VemsedE36 -
    Quote Originally Posted by CarAbuser View Post
    I'm sure it could be done with a change to the logic but that's not an easy task for me. If you have no sport button then by default none of the sport maps will be available for you.

    I'd be surprised if the RFP maps have been updated to include the burble. It's quite easy to do yourself though. I'd be interested on some feedback on how peple are doing with the tables. I've heard that by default most N54 cars won't burble in neutral so that's something I'm going to look into.
    Thanks for your effort bro. I manipulated on all maps on your xdf for ije0s, the maps which did not work are minimum ignition trailing and the minimum speed map.

    Burble in neutral did not work, could be related to the minimum speed map?



  • kylerwinterd's Avatar
    kylerwinterd -
    MHD just came out with their burble at idle I'll look into their rom and see what they are doing..
  • VemsedE36's Avatar
    VemsedE36 -
    I think it is the minimum speed table because when car is moving and I put it in Neutral, burble works. If the car stops the burble stops too.
  • kylerwinterd's Avatar
    kylerwinterd -
    Ok they must have found a new minimum speed byte because they still don't touch the tables. I'll look into this more later tonight.
  • KClemente's Avatar
    KClemente -
    c_t_min_pu_vs is the map you want to change to manipulate burble while stationary. CarAbuser and I did testing on it months ago.

    I8A0S: 0x4246E
    IJE0S: 0x4C032

    conversion: x*0.01 16 bit LSB First.

    Enjoy
  • VemsedE36's Avatar
    VemsedE36 -
    Quote Originally Posted by KClemente View Post
    c_t_min_pu_vs is the map you want to change to manipulate burble while stationary. CarAbuser and I did testing on it months ago.

    I8A0S: 0x4246E
    IJE0S: 0x4C032

    conversion: x*0.01 16 bit LSB First.

    Enjoy
    I modified the existing map on the CarAbuser's xdf with your hex address, cell data size and LSB first. Also did not work for me. Can you help on this?

    Attachment 60476
  • kylerwinterd's Avatar
    kylerwinterd -
    I did a compare of a stock flash with burble between MHD 1.91 vs 1.92 and there is only five bytes changed.

    I'm not sure that 0x4C032 is minimum speed. I think that is a fuel cut delay minimum at standstill. MHD version 1.92 changes this value from 0.16 to 1.6.. MHD says they have their standstill duration set to 1.6 seconds and I think this reflects that.

    I'm curious as to what the other 4 bytes change.. I feel like this latest update from mhd has also increased the amount of pops. Maybe these four bytes are adjusting the characteristics of the burble.

    Attachment 60479

    Attachment 60480
  • CarAbuser's Avatar
    CarAbuser -
    Yes, below the minimum speed setpoint there is a different fuel cut delay.

    This is the parameter name and the INA0S memory location:
    Attachment 60482
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