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Modding the A340LE transmission

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    #46
    I was the bloke who made up the guide/walkthrough on the forums
    I have a stage 1 shift kit now, but found it shifts even firmer when I tighten up the kickdown cable (or whatever you call it) on the throttle body.

    Comment

      #47
      Nice work Ribfeast. Did you get a commercial kit? Why did you choose this over the DIY?

      Looks like I need to find a way to increase line pressure to ger faster shifts. I will find which solenoid it is by tracing wires from the ECU like Al suggested.
      10.83 @ 125

      Quickest stock exhaust manifold stud 2JZ in Aus.

      Originally posted by cracka
      Some conclusions empirically were that a large protruding ridge like a prolapsed arsehole around the runner was largely beneficial.

      Comment

        #48
        Originally posted by bigmuz
        Are you a mate of dragme? He is best mates with my brother in law up here.

        Small world :D

        edit- is that your forum name 747? Maybe mistaken identity, the bloke I am talking about is in Brisbane I think.
        on cressida forums i post under DRAGME

        here 747


        every where else my number plate 1JZ747.

        some one else took my 1JZ747 here and on cressida forums

        whose your brother in law that i supposidly know?
        1JZ747 Racing

        8.37 et PB
        169 mph PB

        Comment

          #49
          some one else took my 1JZ747 here and on cressida forums
          That is odd eh?
          10.83 @ 125

          Quickest stock exhaust manifold stud 2JZ in Aus.

          Originally posted by cracka
          Some conclusions empirically were that a large protruding ridge like a prolapsed arsehole around the runner was largely beneficial.

          Comment

            #50
            Originally posted by 747
            whose your brother in law that i supposidly know?
            Nah, he's a bloke up on the Gold Coast mate. I was confused.

            Carry on :D

            Comment

              #51
              OK I found the wiring for the solenoids. Does anyone know what each one does?

              No1
              No2
              SLN
              SLU
              SLT

              The 2JZ GE only has No1, No2 & SLN (I assume this is the same as the 1JZ and 1UZ trans) So SLU & SLT are the extra solenoids that the 2JZGTE trans has.

              What do all these solenoids do?
              10.83 @ 125

              Quickest stock exhaust manifold stud 2JZ in Aus.

              Originally posted by cracka
              Some conclusions empirically were that a large protruding ridge like a prolapsed arsehole around the runner was largely beneficial.

              Comment

                #52
                S1 - shift solenoid
                S2 - shift solenoid
                SLN - accumulator pressure solenoid
                SLU - Torque Lockup solenoid (found on 1uzfe trans etc)
                SLT - the line pressure solenoid.

                You can leave the SLN solenoid disconnected. It will give quicker shifts.
                Leaving SLT disconnected may provide both firmer/faster shifts, i have never fiddled with one to find out.

                The 2jzge should have the S1, S2 and SLU (not SLN) doesn't it?
                Never argue with an idiot. They will bring you down to their level and beat you with experience.

                Comment

                  #53
                  Thanks mate!!

                  Check out my pics. The first is for the 2JZ-GTE, and the second is 2JZ-GE.

                  So how do these solenoids operate? Are they on/off, or do they operate off varying voltages or duty cycles? I assume the S1, S2 and SLU would be on and off, but what about the others?

                  If I knew I might be able to design a controller.
                  10.83 @ 125

                  Quickest stock exhaust manifold stud 2JZ in Aus.

                  Originally posted by cracka
                  Some conclusions empirically were that a large protruding ridge like a prolapsed arsehole around the runner was largely beneficial.

                  Comment

                    #54
                    Shift solenoids are on/off

                    the others are all PWM, with different frequencies.
                    Never argue with an idiot. They will bring you down to their level and beat you with experience.

                    Comment

                      #55
                      Originally posted by 2JZR31
                      Nice work Ribfeast. Did you get a commercial kit? Why did you choose this over the DIY?

                      Looks like I need to find a way to increase line pressure to ger faster shifts. I will find which solenoid it is by tracing wires from the ECU like Al suggested.
                      Hey mate, I just bought a shift kit from Mike @ MV Automatics and fitted it myself at home.
                      This thread might be worth a look:

                      http://www.supraforums.com/forum/sho...d.php?t=267655

                      Comment

                        #56
                        awesome work finding those diagrams!

                        Should be able to sort something out now.

                        On my trans, A3041LE, the plug that goes to the solenoids has 4 wires on it the Black, white and yellow and a red (which I had to snip the other day, long story) so I assume this red one would be the power to the solenoids and the ecu would send the negative signal to the other wire?
                        state street drift champion 2003

                        Formerly known as bassaholic55

                        Comment

                          #57
                          2jzr31: You got any other aristo wiring diagrams? I'd love to get my hands on as much aristo stuff as possible, on the off chance that i'll need it for my own conversion one day...

                          Comment

                            #58
                            Shift solenoids are on/off

                            the others are all PWM, with different frequencies.
                            Are you sure? I would have thought the converter would have been on or off too? Also have you cleared up which one is the converter? The diagram of mine says SLN for the 3rd sol on the 2JZ-GE trans. Also I have a 1UZ diagram. This has 4 solenoids. S1, S2, SLN, & SLU. Good info on the PWM, I suspected it would have PWM on the line pressure and accumulator pressure solenoids.

                            Hey mate, I just bought a shift kit from Mike @ MV Automatics and fitted it myself at home.
                            This thread might be worth a look:

                            http://www.supraforums.com/forum/sho...d.php?t=267655
                            Yeah, I linked to that thread in the first post of this thread. That is what I have been going by to do these mods. The point is my trans is not exactly the same as the one the guide is for.

                            On my trans, A3041LE, the plug that goes to the solenoids has 4 wires on it the Black, white and yellow and a red (which I had to snip the other day, long story) so I assume this red one would be the power to the solenoids and the ecu would send the negative signal to the other wire?
                            So, your box has 3 solenoids? And one plug supplies all the signals to these solenoids via 4 wires? I have no idea which colors would do what on yours as I don't have a 1JZ diagram.

                            You see, the Toyota ECU has a odd way of doing things. Some solenoids are supplied with 12V+ from the ECU and the other side of the sol is grounded. Other solenoids have 12V+ connected straight to the sol and the ECU grounds the other side. And some have both the 12V+ and the ground going to the ECU in a loop. Take a look at the diagram I posted.

                            2jzr31: You got any other aristo wiring diagrams? I'd love to get my hands on as much aristo stuff as possible, on the off chance that i'll need it for my own conversion one day...
                            The diagram if from a Supra, but is very close to an Aristo in terms of wiring. Give me your Email and I can send it.
                            10.83 @ 125

                            Quickest stock exhaust manifold stud 2JZ in Aus.

                            Originally posted by cracka
                            Some conclusions empirically were that a large protruding ridge like a prolapsed arsehole around the runner was largely beneficial.

                            Comment

                              #59
                              THe colours on that A340 diagram you have match up to mine.

                              Also, I would have thought that the SLN would have to be the lockup converter as my a3041LE only has 3 solenoids and I know b2 and c2 are for changing gears and I know I have a lockup in it so I figure it must be that.
                              state street drift champion 2003

                              Formerly known as bassaholic55

                              Comment

                                #60
                                hey just wondering what you guys think i should do i just got a 30-40LE auto trans for my 1jz-gte into ma61 supra, the 1jz waz from a manual jza70 frontcut so has the manual ecu (didnt come with box) how and what would i do to get the auto running-working....my ma61 was auto.

                                Comment

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