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    Starting issues. Please help.

    '86 325 w/ '87 m20b25
    MAF + smt6

    Ok guys....
    Since the cold weather's here to stay, my ol' bastard-of-a-car is having big problems while starting in the cold.
    I start it up (cranks and fires fine) but it is extremely rough. The engine vibrates so much that the whole car is shaking. It needs constant throttle input to keep it alive, or else it just dies.... I've tried monitoring the fuel ratio with my lc-1, but it is very frantic. Just jumping all over the place.
    Now.... Luckily I was smart enough to install a block heater when the engine was out. If I plug it in for the night, the starts in the morning are much, much better. I still need to apply a bit of throttle, but there is no vibration.

    I should also mention that it has some minor HOT start issues. Once again, it requires a bit of throttle right after starting to keep it from crapping out.

    I just got a new coolant temp sensor, but it's still having the same issues.

    I've gone through the bentley and checked everything. Still can't figure this one out.

    Any thoughts?

    #2
    Cold start valve perhaps?

    Comment


      #3
      Originally posted by NitroRustlerDriver
      Cold start valve perhaps?
      325i engines don't have one.

      Comment


        #4
        possibly your FPR...

        Every day I wake up we drink a lot of coffee and watch the CNN
        Every day I wake up to a bowl of clover honey and let the locusts fly in.
        Lobsterbacks attack the town again
        Wrap all my things in aluminum
        Beams of darkness streak across the sky
        Pink rays from the ancient satellite
        Every time I look out my window same three dogs looking back at me.
        Every time I open my windows cranes fly in to terrorize me.

        Comment


          #5
          test your coolant temp sensor (not the one for your gauge).
          Build thread

          Bimmerlabs

          Comment


            #6
            Originally posted by nando
            test your coolant temp sensor (not the one for your gauge).

            Originally posted by ryan_george
            I just got a new coolant temp sensor, but it's still having the same issues.

            Comment


              #7
              ehh sorry, coming home from work at 8am without any sleep doesn't help my reading skills much :P
              Build thread

              Bimmerlabs

              Comment


                #8
                No problem

                Comment

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