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What is this plug for?

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    #1

    What is this plug for?

    I searched but cant find anything. When I did the s52 swap I just unplugged the 2 wires that went to this plug and everything ran fine so I kinda forgot about it. What is it for? I cant find anything reasonable in the ETM.

    Its the hex next to the power distribution block with the 2 terminals sticking out in the pic. Its on the passenger side of the engine bay. The stock m20 had 2 wires from the engine harness connecting to it... its been unplugged for almost a decade and I havnt noticed anything not working. Thoughts?

    e30sport.net
    '86 325es - s54b32tu - 6-speed - Mtech 1
    '89 325is - m20b25 - 5-speed - Individual​
    '06 M3 Competition - 6-speed
    '19 Porsche GT3 RS - 7-speed PDK
    '94 Lancia Delta HF Integrale EvoII - Giallo Ginestra
    '97 Range Rover Vitesse
    Tags: None
    #2
    I think I answered my own question. It appears to be a temp switch that closes at 32deg for the idle control module. This explains why some e30s I saw didnt have it and also why nothing went wrong when it was left unplugged for 10 years.

    can anyone confirm?
    e30sport.net
    '86 325es - s54b32tu - 6-speed - Mtech 1
    '89 325is - m20b25 - 5-speed - Individual​
    '06 M3 Competition - 6-speed
    '19 Porsche GT3 RS - 7-speed PDK
    '94 Lancia Delta HF Integrale EvoII - Giallo Ginestra
    '97 Range Rover Vitesse

    Comment

      #3
      Nice I was going to make a thread asking the same thing.
      In for the answer.

      Comment

        #4
        wishno parted a car with that, that had m50, was not hooked up


        Please leave feedback below, thanks

        http://www.r3vlimited.com/board/showthread.php?t=358170

        Comment

          #5
          It's an eta thing iirc.
          Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

          Comment

            #6
            Does it by any chance connect to this? This runs along the same branch as the main power for the fusebox. It was disconnected when I got the car and the engine harness had already been disconnected so I'm lost as to where it goes. I'm assuming it's another eta thing.

            Oh and before you ask, I was a hand model for a short time.

            Comment

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