TPS Plug wire change help

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  • Nitro Nick
    Wrencher
    • Jan 2014
    • 268

    #1

    TPS Plug wire change help

    Hey Guys,

    I have an M50 TPS and am now running MS2 from whodwho. He explained to me that you need to switch two wires on the plug. I'm pretty sure I switched the wrong wires. Do any of you know the color codes of the wires that are supposed to be changed for this application. I know they are all a brown variation. Want to complete the right switch tonight so any help would be appreciated. I'm currently using the stock e30 plug which work with this but the wires need to be swapped with his application. I also already have the correct adapter in pace as well.

    Thanks
  • whodwho
    E30 Mastermind
    • Jun 2008
    • 1547

    #2
    Sorry on the delay finding this for you, this is what I had for notes

    E36 TPS, pin 1 is ground, 2 is signal, and 3 is vref
    E30 TPS, pin 1 is closed, 2 is ground, and 3 is open
    Swap pins 1 & 2 on the E30 connector

    E36 Stock wiring/TPS
    1 = BRN(43) - Gnd
    2 = BR/SW(12) - sig
    3 = RT/GE(59) - vref

    E30 Stock wiring/TPS
    1 = BR/BU(52) - Closed
    2 = BR(-) - Gnd
    3 = BR/BK(53) - WOT

    Running M5x TPS on E30 harness
    1 = BR Gnd - Gnd
    2 = BR/BU(52) - Sig
    3 = BR/BK(53) - vRef
    My M20 Frankenbuild(s)
    4 Sale - Fully Built TurnKey Megasquirt Plug and Play EMS

    Comment

    • Nitro Nick
      Wrencher
      • Jan 2014
      • 268

      #3
      Originally posted by whodwho
      Sorry on the delay finding this for you, this is what I had for notes

      E36 TPS, pin 1 is ground, 2 is signal, and 3 is vref
      E30 TPS, pin 1 is closed, 2 is ground, and 3 is open
      Swap pins 1 & 2 on the E30 connector

      E36 Stock wiring/TPS
      1 = BRN(43) - Gnd
      2 = BR/SW(12) - sig
      3 = RT/GE(59) - vref

      E30 Stock wiring/TPS
      1 = BR/BU(52) - Closed
      2 = BR(-) - Gnd
      3 = BR/BK(53) - WOT

      Running M5x TPS on E30 harness
      1 = BR Gnd - Gnd
      2 = BR/BU(52) - Sig
      3 = BR/BK(53) - vRef

      Thanks Boss. I knew you are a busy guy that's the only reason I posted this up. Also might help some other people out.

      Comment

      • E30mpd
        Member
        • Feb 2019
        • 55

        #4
        Was that correct switching pins 1-2

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