I've changed the crank sensor/cam sensor/new fuel pump/adjustable FPR/hard wired pump/battery in the trunk...ran new grounds/...drives for about an hour..once it gets heat in it it stumbles...and dies..try to start it...and it guess makes a bahh sound...turning over strong...I've let it idle for about an hour and a half and it didn't shut off...any ideas??? the mitsu dealer here has been great...give me a engine control resistor to try....changed just about every part ref spark and fuel...nuts.

 

slightly lose coupler causing a slight boost leak? it happened to me before

 

this ^

to counter that being a possibility, unplug your MAF and see if it starts up in limp mode