ok I ended up spending about 10 hours the other day trying to install a glowshift shift light with no sucsess. The instructions read to clip the 2 looped wires and tape them off. Then to wire the red wire to a constant 12V+ and the black wire to a ground. and the other wire which is green I believe to wire that to your "rpm signal". Here is were most are having trouble. To get a Tach signal or a RPM signal you HAVE to use a TACH ADAPTOR which is part number 9117 and its made by autometer runes anywhere from $74.00 - $200.00 why it can get so expensive no idea. The way it works is you run a wire from each of your coil packs (which has 3 wires a black= ground a red/black=power/pulse and a green/white= signal (this is the one you want) ) you splice into each green/white on each coil pack and run it to the tach adaptor and then the tach adaptor output will be a rpm signal. I will do a full write up tommorow with pictures. I ordered my tach adaptor and it will be here tommorow so check back with me or pm me if you need any help or have any questions. and to say some people some work going off the ecu will not work. going off the coils themselves will not work. going off the wire that people say is the rpm signal behind the navi screen will not work. Basically it cannot be done because its a can system and it self dosent have a rpm signal.


(update) Ok, sorry it took so long for the rest of this write up. But I was making sure the information I posted was correct. Ok, I tried everything possible with and without a tach adaptor with no luck. I called around to a couple company's that make a can-bus signal for the evo x and asked them if they knew how. The main response I got form them was. Mitsu told us they wanted a system that was harder to upgrade electrical wise....so we made the can-bus signal. They said that if you go fooling around with it. Its almost for sure that you will burn up your coil packs. Due to the areas where you are having to wire in the tach adaptor. ( If anyone has any questions feel free to pm me and I will try to answer any of your questions)

 

so does the tach adapter work or not?

 

We could not find a bleed-able speed wire and rpm signal wire at all. so we installed the bicycle type of sensor at the rear wheel to read speed for the terra trip computer.
If you or anyone find the rpm signal and the speed signal wire please let us know