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Narrowed down my starting problem

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    Narrowed down my starting problem

    Thanks for all the input in my previous thread. I have replaced the DME, Fuel Pump and O2 relays. New O2 sensor. ICV works fine.

    The hard start problem (usually starts on the third long crank, slowly stumbling to life) only seems to happen when the engine has been up to operating temperature and then sits for at least 15 or 20 minutes to a couple of hours.

    In other words, no problem starting when hot (say, after pumping gas), no problem starting cold (in fact, it starts great in the cold)... only when it's just "warm".

    Any thoughts? Thanks guys.
    Current: Brilliantrot '91 318is M20B25
    Former: '88 M3 3.2L, '91 318is 2.0L, '90 318i, '85 325e 2.8L, '84 318i 2.0L, '84 318i, '90 325is
    wamchenry@gmail.com
    insta: @simple_machines

    #2
    A bad ECT sensor or leaking injectors would be my first suspicions.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

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      #3
      your distributor rotor button is on backward :)

      j/k, sounds like the coolant temp sensor is acting up

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        #4
        Ok, ordered the ECT. Stay tuned!
        Current: Brilliantrot '91 318is M20B25
        Former: '88 M3 3.2L, '91 318is 2.0L, '90 318i, '85 325e 2.8L, '84 318i 2.0L, '84 318i, '90 325is
        wamchenry@gmail.com
        insta: @simple_machines

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