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Thread: Vehicle Speed Signal

  1. #1
    Join Date
    Oct 2011
    Location
    Georgia, Tbilisi
    Posts
    322
    My Cars
    BMW 330 T

    Vehicle Speed Signal

    hello people, i;ve just installed megasquirt on my m52 engine. ms needs vehicle speed signal (as m50 has vss from cluster), but i cant find that pin on my m52 siemens wiring.

    this one is bosch m50. 42 pin is vss from cluster


    those are m52 siemens ecu pins. none of them i think is vss




    so what can i do? how to get vss for my ecu?


  2. #2
    Join Date
    May 2004
    Location
    germany
    Posts
    3,295
    My Cars
    6/96 318is
    Your Siemens DME likely gets its road speed signal over pin 15, "speed signal, right rear". I reckon it should should see 25130.7 pulses per kilometer, but please confirm both these things.
    Last edited by johnf; 11-04-2012 at 03:27 PM.

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