2005 Uplander, stalls, starter disabled, they.

2005 Uplander, stalls, starter disabled, they put a new throttle body to a tune of 650.00 and it still does it. Tried both keys, they tried something with the fuse box taking it off then on. Is there anything easy to fix this. Went this am to warm my car up, died starter disabled and now the engine light is on, I think Obama should have let them go bankrupt. When I called they have no idea of this problem. I told h=them to look at the internet its all over.