help! Swap cranks but no start

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  • gpeterson
    Advanced Member
    • Aug 2012
    • 119

    #31
    Originally posted by diesekte
    I will probably try to replace both TPS then. They're only like 50$ and even if they aren't totally shot I guess it's not going to do any harm.
    I'm in downtown fort worth.

    Doesn't INPA show you actual values for both of those sensors? I'd check before throwing parts at it.

    Comment

    • 95///M3
      Advanced Member
      • Mar 2005
      • 181

      #32
      Originally posted by gpeterson
      Doesn't INPA show you actual values for both of those sensors? I'd check before throwing parts at it.
      Absolutely. You should be able to get live data from the sensors before just throwing parts at it.

      If you aren't getting any input from the pedal, it won't matter much, but have the throttle adaptations been reset?

      Comment

      • diesekte
        E30 Addict
        • Sep 2013
        • 417

        #33
        I don't have INPA anymore unfortunately. The windows 10 update ruined it on my laptop, and I blew all day Saturday trying and failing to find a working download

        To reset, don't you just need to turn key to on for 10 seconds, then off, then start car? That didn't deem to do much of anything for me

        Comment

        • gpeterson
          Advanced Member
          • Aug 2012
          • 119

          #34
          Originally posted by diesekte
          I don't have INPA anymore unfortunately. The windows 10 update ruined it on my laptop, and I blew all day Saturday trying and failing to find a working download
          I'd get it work or find someone local who will let you borrow it. I wouldn't try a swap like this without it.

          Comment

          • gpeterson
            Advanced Member
            • Aug 2012
            • 119

            #35
            Originally posted by 95///M3
            Absolutely. You should be able to get live data from the sensors before just throwing parts at it.

            If you aren't getting any input from the pedal, it won't matter much, but have the throttle adaptations been reset?
            I think I remember my pedal having no effect until I reset adaptations.

            Comment

            • diesekte
              E30 Addict
              • Sep 2013
              • 417

              #36
              Is there another way to reset adaptations besides what I described above?
              Any guesses as to why the car immediately dies if I open throttle bodies manually? Unknown vacuum leak?

              I didn't think I was doing this swap without it until I tried to open it this weekend and it wasn't complying :(. I'll see what I can do about another copy
              Last edited by diesekte; 02-01-2016, 02:47 PM.

              Comment

              • DesertBMW
                E30 Enthusiast
                • Aug 2011
                • 1011

                #37
                Originally posted by diesekte
                Is there another way to reset adaptations besides what I described above?
                No. You have enough money to buy S54 but cheap out on cheap diagnostic tool that can do MSS54. Who ever flashed your MSS54 did not do a good job. Problem is that your MSS54 is adapted to brake light switch. It thinks brake is always on despite you did not even wire brake light switch. Because of this MSS54 is deleting throttle operation. This is why when you manually open it, engine dies, car does not die but the engine. You keep saying "car this car that", it is not the car it is S54 or the engine.
                When I flash MSS54 for swap, I hook it up on my car and clear adaptions and make sure it all runs good, that's quality work that I do.

                Comment

                • BMWfanz
                  Member
                  • Dec 2013
                  • 46

                  #38
                  Does throttle react on pedal? i had same problems- but my ECU was reflashed and modified for swap correctly (Tested on working E46 M3), so my problem was bad connected ground from engine to chasis, check it

                  Comment

                  • 328ijunkie
                    Forum Sponsor
                    • May 2007
                    • 3961

                    #39
                    Bmwlogger will reset them as well.
                    Who flashed your DME?

                    Check Us out on Facebook
                    Needing a harness adapter or wiring help? Check it out: also have 24v motor mounts, E30 M3 covers and E36 ECU mounts!
                    Full Product Line Tuning
                    OBD2 Tuning Available! OBD2 E36, S54 Swap, S62 Swap, etc: tuning@MarkertMotorWorks.com Dyno Thread

                    Comment

                    • diesekte
                      E30 Addict
                      • Sep 2013
                      • 417

                      #40
                      Desertbmw- I didn't say I was too cheap to buy it, I said I couldn't find a legit looking copy. Are the ones off ebay ok/do they work? Otherwise I don't really know where to get it. The ecu was supposedly hooked up to and tested on an e46 m3 by the tuner

                      Bmwfanz- throttle does not react when moving pedal. Ground from passenger side engine mount arm to chassis is good. Am I missing another?

                      Dave- will get bmwlogger and give it a shot. It was flashed by clown shoe motorsports in dallas. I wanted someone local to me in case I ended up having a dme issue. I may have to pay them a visit...

                      Comment

                      • BMWfanz
                        Member
                        • Dec 2013
                        • 46

                        #41
                        If pedal does not react- something wrong (Test a pedal and wiring, cause when you turn ignition on- throttles must react on pedal)

                        Comment

                        • 328ijunkie
                          Forum Sponsor
                          • May 2007
                          • 3961

                          #42
                          Do ITBs self test when you key on? can you talk to ECU?

                          Check Us out on Facebook
                          Needing a harness adapter or wiring help? Check it out: also have 24v motor mounts, E30 M3 covers and E36 ECU mounts!
                          Full Product Line Tuning
                          OBD2 Tuning Available! OBD2 E36, S54 Swap, S62 Swap, etc: tuning@MarkertMotorWorks.com Dyno Thread

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                          • diesekte
                            E30 Addict
                            • Sep 2013
                            • 417

                            #43
                            Originally posted by BMWfanz
                            If pedal does not react- something wrong (Test a pedal and wiring, cause when you turn ignition on- throttles must react on pedal)
                            I have seen conflicting info on this. I have seen that they move with key on and also that they only will move if engine is running - which is correct?

                            I tried to reset throttle adaptation with 'key on 10 sec' procedure 3 or 4 times and it never changed anything.
                            INPA still doesn't seem to be working for me, and even with bmwlogger, all I get is a cable is not connected message, though it will read battery voltage and ignition on, it won't do anything else. As I said before though, the OBD2 reader does work...so the ECU is functioning if it is creating and storing codes??

                            I shot an email off to the shop that did my tune. They're going to look at the .bin and get back to me.
                            Last edited by diesekte; 02-03-2016, 06:47 PM.

                            Comment

                            • 328ijunkie
                              Forum Sponsor
                              • May 2007
                              • 3961

                              #44
                              They will move when you key on and do a self test then while still keyed on they will acutate with the pedal with the engine not running. This is 100% for sure.

                              OBD2 reader does work and you can pull codes? What codes? By that premise ECU is at least powered on.

                              Check Us out on Facebook
                              Needing a harness adapter or wiring help? Check it out: also have 24v motor mounts, E30 M3 covers and E36 ECU mounts!
                              Full Product Line Tuning
                              OBD2 Tuning Available! OBD2 E36, S54 Swap, S62 Swap, etc: tuning@MarkertMotorWorks.com Dyno Thread

                              Comment

                              • diesekte
                                E30 Addict
                                • Sep 2013
                                • 417

                                #45
                                If I key on and push the pedal nothing happens. With engine running if I push pedal nothing happens.

                                Codes I get are:
                                P0121
                                P0123
                                P0221
                                P0335
                                P2122
                                P2126
                                P1637

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