I experienced a problem tonight in my 94 fj80 that i cant seem to figure out. I was driving really slow into someones driveway and next thing i knew the 80 had just cut off, totally dead. put it in park and it started back up, sat there and it idle alright then a little later the rpm's got so low and jump around a bit under 1000 until it cutoff again. i cant seem to figure it out b/c sometimes it idle fine and other it doesnt. I was little low on oil but dont see how that could effect it and it was 10 degrees out but otherwise everything was fine. Is it possible that some fuel injector cleaner or gas water remover could help?