I have 1988 cavalier z24 2.8 ltr v6 I my dad first had it and it sat for almost a year before he bought it. when he started driving it after a 2 weeks the car stalled real bad and would cut off around 30. he changed the crank sensor the tbs,and fuel filter. After that in ran but he let it sit again because he took the tv cable out of adjustment going to the trany. I got it from him and it didnt want to stay started so I replaced the fuel pump, coil pack, computer, alternator, and map sensor. it ran for a while like 10 minutes but before it use to run for like a minute or so and die or when ever I touch the gas. But after letting it run for 10 minutes I ran out of gas. When I came back and put gas in it , it started doing the same thing. What is it ?