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  • #16
    Good, because we've got some long trips planned for the Cummins Commando.

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    • #17
      remember that if you have a manual trans, you should not need a speed signal, just keep the rpm the same (and possibly add a switch to the clutch pedal)

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      • #18
        Originally posted by dlang View Post
        remember that if you have a manual trans, you should not need a speed signal, just keep the rpm the same (and possibly add a switch to the clutch pedal)
        You would still need a speed sensor signal. That is how the ECU completes the feedback loop to control the engine RPM to maintain speed.

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        • #19
          I'm running GPS speed is that an issue? I think my module has some output options though. My tcase is probably going to be replaced by an Atlas unit and I don't know much about their options yet other than gear ratios.

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          • #20
            Originally posted by Axis Industries USA View Post

            You would still need a speed sensor signal. That is how the ECU completes the feedback loop to control the engine RPM to maintain speed.
            doesn't the ECU know the engine RPM already? so it should be able to just maintain the RPM without needing an extra sensor

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            • #21
              Originally posted by DieselJeep View Post
              I'm running GPS speed is that an issue? I think my module has some output options though. My tcase is probably going to be replaced by an Atlas unit and I don't know much about their options yet other than gear ratios.
              I have an Atlas in my JK and I went through the options. They have the ability to run a D300/NP2xx mechanical speedo output, an electronic pulse trigger (like they've been using for a good 20+ years with the 4.0, or no provision for any speedo at all. Since my JK uses the ABS wheel sensors for speed input, I went with the latter option. Assuming my plans for the truck go forward, I'll have either the stock NP208 or Atlas with a digital trigger to drive both the speed input to the computer but also to drive an aftermarket electric speedometer that is going in the dash when I do my gauge package upgrade. Though I may try to do a 4L60E with the Novak transfer case adapter that has a VSS set up in the adapter between the trans and t-case. That would let me run just one program for the transmission and I wouldn't have to worry about hooking up the 4LO signal to the computer and plug in the low range ratio and all that nonsense. I'd still drive the speedometer from the tail of the t-case though.

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              • #22
                So its true that the cummins ECM has cruise control capability? How could you possibly know that, I cant even find a full wiring diagram for what arrived in my harness box.

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                • #23
                  Originally posted by Axis Industries USA View Post
                  Hey guys, we are actually working on a solution to enable cruise in the factory Cummins ECU. That way there is no other needed electronics involved.
                  All that will be need is a VSS signal and a couple of switch inputs for the request and brake signal. We should be testing it here shortly.
                  Sorry to necro the thread but I'm just getting on board with this R2.8 ideal. Any word on this?

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                  • #24
                    Originally posted by 6gun View Post

                    Sorry to necro the thread but I'm just getting on board with this R2.8 ideal. Any word on this?
                    Same same.
                    QW

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                    • #25
                      So if you want to make it easy, go external. I do not know if Axis ever got theirs going....

                      look at rostra or dakota digital. LS drive by wire cruise system. (Google that line) This does require picking up the stock signals from the pedal and you will need a VSS input to it from your trans. This signal needs to be GM pulse as well. This does work when done properly, however I am hesitant to tell anyone exactly how to being the liability.

                      This is not plug and play..... but solves the software issue so it’s just wiring. Again I am just hesitant to tell anyone exactly how to do this.

                      I have used these cruise systems in many vehicles LS and Cummins alike. I caution, cruise if not installed correctly, can cause serious damage to you, your vehicle, or engine.

                      Cheers

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