My 1990 does the same thing. The check engine light comes on for a while and then disappears. Turns out it is the mass air sensor. I have resisted replacing it for some time and have not really had any trouble. Some of the other guys can tell you the pros and cons about the air sensor not working correctly but I think it will make your engine run rich or lean. Anyone know for sure?


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