I have a opportunity to buy a straight 6,trans,and transfer out of a 88 cj.what do i need to know about putting this into my 92 yj? I am guessing i can eliminate the ecm if i do this,but will my guages and fuel sending unit work?
I know in CA we can't go backwards in years for smog reasons, not sure how FL is with that. I know I would stick with Fuel injection if possible. If you can go with the older 6 your going to have to go bare bones like a old CJ.
The 87-91 YJ's came with an ECM. Its mounted on the back side of the driver's inner fender, down below the coolant tank.
If you switch to this drivetrain, you can do a nutter bypass, but you need the PCM from the donor vehicle. The one from yours isn't compatible. And as you thought, you will lose the use of your gauges.
Seems to me like a lot of work to go back in technology. Fuel injection is much better than a carburetor any day of the week, and although the older YJ has a 4.2L motor, it doesn't compare with the horsepower and torque of the newer smaller 4.0L.