Engine replasment wont start, Help!

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  • Eli.z.r.c7@gmail.com
    Noobie
    • Sep 2018
    • 30
    #1

    Engine replasment wont start, Help!

    I swapped my e30 engine since the old engine had a knock the new engine is not starting I found that when I disconect the quik connector of the fuel rail the car runs for a few seconds and then shuts off. Crazy, I now. Please If you have any suggestions I would appreciate since I am getting a little bit discouraged.

    Sent from my SM-G960U using Tapatalk
    Tags: None
    • citizen_insane
      Wrencher
      • Jan 2013
      • 216
      #2
      Does it smell like fuel? Pull a plug and confirm it's not flooding. Maybe you have bad/leaky injectors.

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        • Eli.z.r.c7@gmail.com
          Noobie
          • Sep 2018
          • 30
          #3
          Originally posted by citizen_insane
          Does it smell like fuel? Pull a plug and confirm it's not flooding. Maybe you have bad/leaky injectors.
          Yes. I have every thing spark, gas and timing. I changed all the injectors just in case and nothing.

          Sent from my SM-G960U using Tapatalk

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            • zaq123
              E30 Fanatic
              • Jul 2016
              • 1364
              #4
              Originally posted by Eli.z.r.c7@gmail.com
              I swapped my e30 engine since the old engine had a knock the new engine is not starting I found that when I disconect the quik connector of the fuel rail the car runs for a few seconds and then shuts off. Crazy, I now. Please If you have any suggestions I would appreciate since I am getting a little bit discouraged.

              Sent from my SM-G960U using Tapatalk
              what do you meant by "quik connector of the fuel rail"? You disconnected the fuel line?

                Comment

                • Eli.z.r.c7@gmail.com
                  Noobie
                  • Sep 2018
                  • 30
                  #5
                  Originally posted by zaq123
                  what do you meant by "quik connector of the fuel rail"? You disconnected the fuel line?
                  I disconect the fuel rail electrical connection and it runs. It makes no scene to me.

                  Sent from my SM-G960U using Tapatalk

                    Comment

                    • zaq123
                      E30 Fanatic
                      • Jul 2016
                      • 1364
                      #6
                      Originally posted by Eli.z.r.c7@gmail.com
                      I disconect the fuel rail electrical connection and it runs. It makes no scene to me.

                      Sent from my SM-G960U using Tapatalk
                      I see..you meant injector harness. Fuel rail has no electrical connections. I think the other suggestion is not far from where I'd start. Maybe your engine is flooding? Does your engine oil smell like gas? Maybe pressure regulator diaphragm or internal spring broke? Take the vacuum line from the regulator and see if there any gas in it or if vac line smells like gas. Sometimes if the diaphragm is torn, you won't see gas right away. Maybe put a mityvac on it with clear tube and do a few hand pumps. See if any as comes out and if the regulator can hold 9 pounds of vacuum or so

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