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Pulse sensor on the spark plug wires

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    #16
    Originally posted by jink0619 View Post
    Correct! I'm experiencing the throttle lag :(

    I did some experimenting on my old wires today and cannot
    figure how I'm gonna get that pulse sensor on the wire....only
    option other then buying a new set is to cut it and rewire, hmmm
    dont know if I wanna do that!
    Your just going to have to bite the bullet and order true "I" wires

    1987 Alpinweiß 325is

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      #17
      you can cut and rewire a spark plug wire with only pliers its pretty easy....

      the only part that matters is the center of the wire.... you strip the rest off..... bend the center wire into the end peice... scrunch it so it stays put.


      thats all i mean no tools are necessary but a spark plug crimper makes it easier.

      I think i could do it with a steak knife.

      i used to work with coaxial cable though so I understand the concept...

      in the middle is the cable. use a razor blade and scrape off all the silicone and crap off the last inch of a wire and leave an inch of only bare wire.

      put the puls plug on.

      bend the inch of wire onto the next inch of wire that has a coating.

      put the wire end on. crimp it ... thats all it is....

      the rubber boot is just for protection.

      an exacto or razor blade or sharp knife....

      harbor frieght sells cheap tools for this too.
      Last edited by stamar; 03-01-2012, 12:58 AM.

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        #18
        ^ thanks you the man!
        sigpic
        E30love

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          #19
          Guess I gotta look for my old wires, my performance wires didn't have the pulse sensor and the connector for it is just hanging around

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            #20
            Originally posted by PNWDan View Post
            Running without it will cause an off throttle lag. You'll definitely regret not having it. I've tried it both ways to verify. "e" wires don't have them while "i"wires do.
            Wrong. my 88 E has a pulse sensor

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              #21
              Originally posted by Bmwman92 View Post
              Wrong. my 88 E has a pulse sensor
              that's because it uses Motronic 1.1. he's not wrong, because all the other etas, except the '88, do not have it.
              Build thread

              Bimmerlabs

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                #22
                I'm experiencing the exact same off-throttle lag after installing a set of 7mm Magnecor wires, and it takes 1 or 2 more seconds of cranking to the start the engine than it used to. I reinstalled the pulse sensor on wire #6 though.

                I'll fiddle with it again tomorrow, but could I have ruined the pulse senor when I squeezed the new wire through it? Some plastic shavings came out from inside the hole that the wire goes through because it was such a tight fit. I made sure all the connections are tight and I don't have any check engine lights.
                1989 325i Lachssilber Sedan
                5-Speed Swapped
                M30B35 Swapped
                MegaSquirt MS3X

                1987 325i Lachssilber Sedan
                260k OEM Automatic Daily Baby

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                  #23
                  The cylinder ID sensor won't cause that. It sounds like there are intake leaks.
                  The car makes it possible, but the driver makes it happen.
                  Jim Levie, Huntsville, AL

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