I put a 5.0HO out of a mustang in my TJ and using mech gauges. I don't think you'll be able to get the stock guages to work because of the buss system that the TJs use.jgarden1 said:For those doing a V8s wap into a TJ, do you plan on using the guages in the the stock instrument panel? How are you gonna make that happen? My understanding is that the gauges basically get their info from the OEM computer which receives it from the sensors. So with no OEM computer, how does it work?
KPJ, are you gonna do a write up?
jgarden1 said:FWIW, it might be possible to leave the OEM chrysler computer in place with power and then use the chrysler sending units in the new engine. Basically leave ECM solely to power up and actuate the OEM gauges - kind of like a stand alone system. Not sure if it will work, but worth a try, if you don't want to start messing with a custom dash. But if one can do an LS1 or LT1 swap the dash work shouldn't be too challenging.