MSefi.com read only forum (Jan.15,2018)

So in Megatune turning the rpm pot should generate a signal like the other pots?


I was able to hook the computer to my vehicle and the computer is working.
I may have damaged something on the stimulator while building it.

Thanks for the help.

Thanks for the reply.

Will you explain this a ittle more, why is there an rpm pot on the stimulator?

Sorry, I posted this in the wrong section, feel free to remove it.

All sensors other than tach work fine when testing.

I have tried all 3 tach circuits, with jumpers in correct positions for each and get no signal on megatune.

I'm leaning toward the stim not putting a signal out.

Has anyone seen this?

I get 3000 rpm briefly when I connect the stim to ms, but ...

Thanks for the answers, Josh

From what I can tell it is a variable reluctor, but I have read some things saying Hall "effect" sensor.

I'm trying to decide which circuits to build.

If it is a reluctor I will build the variable reluctor circuit and the neg. side of the coil circuit and could choose which with jumpers.

Inside ...

Also I forgot to ask if ordered the kit from DIYAutoTune would I have to install the firmware for MS1 or would it already be installed?

Matt,

Thanks for replying, None of the cpu grounds seem to work. If I hook the multimeter to 1 and 2, I get 0 volts, if I hook to 19 and 20, I get 0, and 31 and 32, I get 0 volts. However if I ground the multimeter to the negative side of the battery, and touch the positive lead to any of the ...

I've been building in stages and when I last left off I had the correct 5 volts to the cpu pins.

I went on to build the communication steps and that tested correctly.

I then got to the point in which you test with megatune. I couldnt ever get it to connect.

Now I've gone back and checked voltages ...