simonramirez07

so first off. i have a 5.0 h.o completely stock. fuel injected five speed. when i start it up it wont stay on. it will turn on. but it dies. if i give it gas and rev the rpm's to around 2000 for a few seconds the car will idle. but only after ive given it gas. does anyone know why it wont idle by itself?

second question. when im flooring it. between 3000-4000 rpm, my car hestiates. its doesnt completely stop accelerating, but the car acts like its has a miss. does anyone know why it does this?

thanks mustang forums! please help.