The motor is now in an old ford truck, so i'm doing some custom wiring. The red wire on the cps is 12v ignition, the black wire is ground, and the green wire goes to the coil pin on the back of the tach. Find the exact 12 valve cummins crank position sensor location with this easy guide While you can basically use any 3 wire crankshaft position sensor that will handle 12 volts dc (this is most cps's from the 90's through the early 2000's), i wanted to future proof my cummins swapped 80 by using something common. But for the life of me i can not find where the tachometer sender is I am wanting to put a new gauge in, but.
Your 12v doesn't have a cam sensor obviously I put a 12v in an 03 and never finished the project, but i did find that with hptuners the ecm can be programmed to fire the tach with just the crank position sensor signal. Here is a short video on the connections for the ess to any aftermarket tachometer or boost / nitrous / water meth /. Hook the speedo drive cable to the drive and the tach sender unit (which can be mounted anywhere). Just hook the brown prox wire to your switched 12v and the blue wire to ground The black wire will go to your 'tach' wire, usually the green wire on the tachometer
