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No spark, fuel stays running

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    No spark, fuel stays running

    My car died on me and won't start. 1985 325e. I am not getting any spark. I put a new main relay in and now I hear fuel flowing at the fuel rail. I don't think there should be fuel flowing unless the engine is cranking.

    #2
    your problem is obviously the crank position sensor. you hear fuel at the rail but that does not mean your injectors are firing. the crank position sensor is probably bad and causing the injectors to not fire and the DME to not give spark.

    on your early model it is located on the transmission bellhousing drivers side. also referred to as speed/reference sensor

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      #3
      I tried a new cran sensor and still didn't fire up. The crank sensor plugs into the plug that is grey or black?

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        #4
        Also I believe fuel is injecting because I can smell it in the oil and from outside

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          #5
          okay have you checked the condition of your ignition system? how new is your rotor and cap? is your coil ok?

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            #6
            I will check that next, I just checked to see of I got voltage at the coil. I am getting voltage at the positive and negative terminal with the ignition on. Also I should add, the car died while j went around a corner. The wouldn't start at all, or even try. The next day I went to jump it and it fired right up buy died about 15 minutes later while idling. The car hasn't started since

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              #7
              Originally posted by D_bender View Post
              I tried a new cran sensor and still didn't fire up. The crank sensor plugs into the plug that is grey or black?
              There are TWO crank sensors ... one black connector and one grey connector.

              The sensors themselves are the same, but they serve different functions. And they are VERY easy to reverse!
              101

              The E30 collection:
              1987 325es M52 - Schwarz / Taurus Red Sport (son #2's)
              1987 325is - Delphin / Black Sport (son #3's)
              1987 325i Convertible - Triple Black
              1989 325iX Coupe - Diamondschwarz / Black Comfort
              1990 325iX Coupe - Sterling Silver / Grey Sport

              1981 Fiat 124 Spider 2000 - Green / Tan
              1998 Volvo V70 GLT - White / Tan
              1998 Volvo S70 T5 manual - White / Taupe
              2001 Ford Windstar - Silver / Grey (parts hauler)
              2006 Lexus GX470 - White / Tan (tow rig)

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                #8
                The car will shut off randomly. The car won't start until the engine gets cold, which is atleast an hour later.

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