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    False RPM reading S50 swap

    Need an advice on where to start looking to fix false rpm reading. Per my tach my redline is somewhere around 6200 rpm, which should be around 7200-7400 area. I have SSSquid chip installed.
    Last edited by vitiokas95; 05-10-2015, 04:09 PM.
    1990 e30 325is S50 swap (NASA GTS2 race car)
    1990 e30 325is
    1988 e30 M3 S50 euro swap

    #2
    Fixed faulty to false sorry.
    1990 e30 325is S50 swap (NASA GTS2 race car)
    1990 e30 325is
    1988 e30 M3 S50 euro swap

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      #3
      Anyone?
      1990 e30 325is S50 swap (NASA GTS2 race car)
      1990 e30 325is
      1988 e30 M3 S50 euro swap

      Comment


        #4
        put stk chip back in and compare ?
        My CA legal M60 swap

        The happening in our garage

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          #5
          don't have one, engine came with Turner software, I replaced it with Sssquid
          1990 e30 325is S50 swap (NASA GTS2 race car)
          1990 e30 325is
          1988 e30 M3 S50 euro swap

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            #6
            What car did you do the swap in?

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              #7
              Make sure you have the 325i coding plug in your cluster. Part number should end in 468.
              Owner - Bavarian Restoration
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                #8
                Low redline can be a VSS signal issue.

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                  #9
                  Originally posted by jt223539 View Post
                  What car did you do the swap in?
                  S50 swapped into '90 325is
                  1990 e30 325is S50 swap (NASA GTS2 race car)
                  1990 e30 325is
                  1988 e30 M3 S50 euro swap

                  Comment


                    #10
                    Originally posted by Gregs///M View Post
                    Make sure you have the 325i coding plug in your cluster. Part number should end in 468.
                    I will remove cluster tonight to check it out.
                    1990 e30 325is S50 swap (NASA GTS2 race car)
                    1990 e30 325is
                    1988 e30 M3 S50 euro swap

                    Comment


                      #11
                      Is the cluster came from a 318, it would have the 7000rpm tach, but read wrong. It was my problem when I did my swap.

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                        #12
                        Originally posted by M3PO View Post
                        Low redline can be a VSS signal issue.
                        This.
                        2006 GMC Sierra 2500HD 4WD LBZ/Allison
                        2002 BMW M3 Alpinweiß/Black
                        1999 323i GTS2 Alpinweiß
                        1995 M3 Dakargelb/Black
                        - S50B32/S6S420G/3.91
                        1990 325is Brilliantrot/Tan
                        1989 M3 Alpinweiß/Black

                        Hers: 1996 Porsche 911 Turbo Black/Black
                        Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd

                        sigpic

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                          #13
                          Originally posted by M3PO View Post
                          Low redline can be a VSS signal issue.
                          And 6200 is usually where it cuts out for no VSS.
                          paint sucks

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                            #14
                            Originally posted by Wh33lhop View Post
                            And 6200 is usually where it cuts out for no VSS.

                            OK, how can I fix it?
                            1990 e30 325is S50 swap (NASA GTS2 race car)
                            1990 e30 325is
                            1988 e30 M3 S50 euro swap

                            Comment


                              #15
                              Make sure the DME is getting the VSS (vehicle speed signal). Should just be a wire you connect to the c101.
                              paint sucks

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