I say pull all of the electronics from the v6 body and swap them over into the 4cyl body. Thats the only real way to be sure everything will work. isn't hard to pull the wiring harness after you get the dash off. Also swap dashboards so VIN matches. <img src="/forums/images/graemlins/kewl.gif" alt="" />

Richard E
1989 Montero - Stock-ish
1989 V6 Auto Raider - 5.3 Vortech Swap.
1987 Mitsubishi Starion 2.6t, soon to be 3.5
1983 Honda XL600R