Ok, so the diagnostics said the mass flow air sensor was going bad but I've been driving it anyway 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 but was wondering if mass air flow sensors playing apart in the problem althoughlike I said. . . 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

 

It is going to start giving you a fuel lean\ rich mixture problem . You need to check your codes and see what else is coming up. could be a few different issues but you need to take care of what ever is registered first .

 

I have a 2000 s10 Xtreme 4.3 5speed.. it seems to hesitate once warmed up give it gas and it jumps but cold not so much any idea what causes this

 

Has new throttle position sensor ignition