Will Not Fire

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  • Erodras
    Noobie
    • May 2014
    • 29

    #1

    Will Not Fire

    After pulling my injectors and rebuilding, they car is turning over, but not firing. I have checked all hoses and connections, but all things are in their place. Any ideas on what it could be? 1989 325i m20b27, stock injectors.
  • Sea Aych
    Mod Crazy
    • Apr 2013
    • 763

    #2
    Checked your fuel pump? Are you getting spark?
    1988 Atlantisblau Euro/Japanese 325i Cabriolet
    1989 Schwartz 325i - now M50 powered! - now very dead
    1998 Toyota 4Runner Limited
    My 17,000km Big NA National Parks trip!

    Comment

    • Erodras
      Noobie
      • May 2014
      • 29

      #3
      Originally posted by Sea Aych
      Checked your fuel pump? Are you getting spark?
      It worked fine before hand, if it were the fuel pump, how could I tell?

      Comment

      • jlevie
        R3V OG
        • Nov 2006
        • 13530

        #4
        Might you have gotten the fuel supply and return lines swapped?
        The car makes it possible, but the driver makes it happen.
        Jim Levie, Huntsville, AL

        Comment

        • Erodras
          Noobie
          • May 2014
          • 29

          #5
          Originally posted by jlevie
          Might you have gotten the fuel supply and return lines swapped?
          No sir

          Comment

          • Erodras
            Noobie
            • May 2014
            • 29

            #6
            Here's a link to an album, pictures of all the parts involved in what I did. http://imgur.com/a/wrscJ

            Comment

            • NeedaE30
              Grease Monkey
              • Sep 2010
              • 397

              #7
              stupid question i know, but are the fuse/relay back in place? :P

              Comment

              • Erodras
                Noobie
                • May 2014
                • 29

                #8
                Originally posted by NeedaE30
                stupid question i know, but are the fuse/relay back in place? :P
                Nothing of the sort was tampered with, it's all where it was before.

                Comment

                • Erodras
                  Noobie
                  • May 2014
                  • 29

                  #9
                  I checked the fuel pump relay and main relay, both click once when the ignition is turned on.

                  Comment

                  • nando
                    Moderator
                    • Nov 2003
                    • 34827

                    #10
                    Are the crank sensor and CID plugs bacwards?
                    Build thread

                    Bimmerlabs

                    Comment

                    • b1mm3r
                      Advanced Member
                      • Apr 2014
                      • 184

                      #11
                      Jump fuel pump relay number 87-30 and see if it comes on, you can disconnect fuel feed line and see if fuel comes out also.
                      sigpic
                      87 325e DD--93 318is s50--07 3.0 X5 wifes

                      Comment

                      • Erodras
                        Noobie
                        • May 2014
                        • 29

                        #12
                        Found out, no Injector pulse. Checked the connectors and everything is in place. What could be causing the issue?

                        Comment

                        • nando
                          Moderator
                          • Nov 2003
                          • 34827

                          #13
                          no crank signal = no injector pulse
                          Build thread

                          Bimmerlabs

                          Comment

                          • Erodras
                            Noobie
                            • May 2014
                            • 29

                            #14
                            Originally posted by nando
                            no crank signal = no injector pulse
                            Brand new CPS

                            Comment

                            • nando
                              Moderator
                              • Nov 2003
                              • 34827

                              #15
                              doesn't mean the signal is getting to the DME.

                              are you sure the CPS and CID weren't switched around?

                              does the DME for 100% sure have power?
                              Build thread

                              Bimmerlabs

                              Comment

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