My 1989 300 SEL is having problems with stalling at low idel and not being able to restart until after 2-3 minutes have passed. It has also started to do this while just simply driving. It is a fuel issue I am almost certain but don't know what the problem is due to it being able to start again. I would think that if my fuel pump relay ( 1 year old ) were bad it would not start again. Does this relay reset itself? I also noticed that my ABS lite is on sometimes and other times it's off. Sometimes the check engine lit will come on for a breif second and then they the both will shut off. I just installed new cap, rotor, plugs, wires, and fuel abd air filters. ANY help would be greatly appreciated.