I picking up a 91 which had the ECU rebuilt. ECU took a crap again. Owner is tired of dealing with it.
My point is, see if you can borrow a ECU to rule out this theory.



1990 Montero LS "Bottom Feeder" LWB, 33's, Cheapass Lift, 2" body lift, Dual BoUnCyS, Dual LSD's, KC's.
1995 Montero SR Complete LS interior swap and a BoUnCy from a 96 SR. General Grabber AT2's 33X12.5. 1.5" Body Lift