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Thread: Definitive EFI ECU Pinout (KS Mod-friendly)

  1. #61

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    hay mate have this diagram and can see tps signal wire goes to ecu pin 84 or as some know it as pin 14 now my question is that there are 3 wires to the tps i need to find out where the other 2 go i know one is a earth and the other is a 5 volt power suply if im correct? i need to know exactly where these 3 wires go if pin 84 is signal then where on ecu does the other 2 go ??????? thnks for your time so sory didnt mean to afend not very good with computers
    Last edited by veegeeta; 07-03-2012 at 09:06 AM. Reason: didnt mean to afend

  2. #62
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    Hi Shane,

    This isn't the thread for that kinda discussion, also I don't know off the top of my head, it'll require some research.

    These threads might help:
    TPS measurement.
    ASC to Manual Throttle Body questions

    Ps. Asking that question in this thread, via PM and as a visitor message on my profile could be considered as harassment, please don't do that.
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  3. #63

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    So is pin 86 the pin for speed signal from sensors or abs INTO the ECU or is it the speed signal OUT of the ECU for driving the dash? The reason I ask is I am prototyping an in car mpg display and I am looking for the speed signal probably to the instrument cluster to do the calculations on the fly to produce the correct figures. I hope to sell them after, they will replace the clock which will hopefully be displayed on the same display.

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  4. #64

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    speed input so ecu knows vehicle speed. signal is produced by pulse gen on gearbox.

  5. #65
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    Quote Originally Posted by Dom B View Post
    So is pin 86 the pin for speed signal from sensors or abs INTO the ECU or is it the speed signal OUT of the ECU for driving the dash? The reason I ask is I am prototyping an in car mpg display and I am looking for the speed signal probably to the instrument cluster to do the calculations on the fly to produce the correct figures. I hope to sell them after, they will replace the clock which will hopefully be displayed on the same display.

    Kind Regards
    Have you seen the universal trip computer being offered here for not much money.
    http://www.clubvr4.com/forum/showthr...=trip+computer

    Bye for Now!

  6. #66

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    Will pins B-11 and B-14 be suitable for 'alternative input' on automatic transmission PFL/FL's too? The pinout diagram shows this for MT only. Since they're listed as unused in AT I expect they will work too?

  7. #67
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    Quote Originally Posted by Dice View Post
    Will pins B-11 and B-14 be suitable for 'alternative input' on automatic transmission PFL/FL's too? The pinout diagram shows this for MT only. Since they're listed as unused in AT I expect they will work too?
    Hi Dice,

    I'd look at your wiring loom and see, if there's no wires in those slots then I'd probably say yes. You'll still have to flash Kens KS Mods ROM to make use of them, which I believe is a MT ROM anyway, so they should work. You may have issues with your AT ECU and TCL if fitted, but I haven't actually heard of any problems to date and KS Mods has been run on AT already

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    pinout update

    Just checked my MR578137 (Auto, TCL):
    Attached Images Attached Images

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    Quote Originally Posted by Vanek View Post
    Just checked my MR578137 (Auto, TCL):
    What are you trying to say?

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    I made few corrections in the table for FL Auto ECU

  11. #71
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    Can anyone help me setup my AEM wideband to log AFR using evoscan,i know the 0-5v signal wire have to he attached to pin 75........when that is done what else do i have to do to get it working?

  12. #72
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    Quote Originally Posted by Vanek View Post
    I made few corrections in the table for FL Auto ECU
    Hi Ivan,

    If someone can confirm your changes (a second opinion) I will update the pin out

  13. #73
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    Quote Originally Posted by rajvr497 View Post
    Can anyone help me setup my AEM wideband to log AFR using evoscan,i know the 0-5v signal wire have to he attached to pin 75........when that is done what else do i have to do to get it working?
    Hi Raj,

    You need to tell EvoScan to log the correct value, it's either the O2 or MAP sensor input from memory (haven't used it in years). Next time I have my flashing laptop out I'll check for you

  14. #74
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    Thanks alot Jason

  15. #75
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    Version 6 has been uploaded (migrated to Google Sheets for future updates and easier printing). Original post updated.

  16. #76
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    @foxdie

    On both my early PFL and late FL, the wire colour from OBD pin 1 to ECU pin 56 (pin 6 of third connector), is grey with a red trace. Not green with a red trace. I've checked at both ends of the wire, to be sure!

    Also, pin 26 is black on the diagram, but the white writing says 'white' instead of 'black'!
    Last edited by elnevio; 10-10-2020 at 09:49 AM. Reason: Added further pin info
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  17. #77

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    C3 is not digital output, it's a serial output. Baud is 15625. Outputs 4-5 parameters (rpm, load, accel enrich, etc) with a rudimentary checksum for TCL system to get this info from the ECU.
    C9 is the RX pin on the same serial interface. Tied to ground as it's not used in VR4.

    C6 - typo. This isn't L-line. Mitsubishi use K-line only, no L-line as per iso9141-2.

  18. #78

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    some more info I posted on OZVR4 attempting to reverse engineering the hardware of the ECU.

    https://www.ozvr4.com/threads/ecu-pi...r4.6395/page-2

  19. #79
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    That's really interesting, thanks BCX!

    Don't suppose you've decoded the signal from the Gearbox ECU into B16?

  20. #80

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    Nah I haven't as mines a manual.

    Looking through the Magna workshop manual, there mention of "Engine-A/T ECU requesting torque reduction", the troubleshooting guide implies its a simple pull-to-ground digital input that the TCU controls.
    Haven't looked at how the ECU actually reduces torque, but there is a table that appears to modify timing. Might be related? Might have to rabbit hole and get back to you.

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