Ok, so the diagnostic said mass flow air sensor was going bad but I've been driving it without any problems, now, if it's cold it'll start in a snap but once I've run it and the enginen warms up and then turned it off it won't start. Got new fuel filter and wondering if mass air flow sensors playing apart in the problem although it's been running fine with the light on in the dashboard about checking engine ( i.e. mass flow air sensor) Could that be causing it now to not start once it's warm? Or is this something altogether new. Anybody anybody????. . . . .plz help thanks