[s-cars] No start, Help

[Elijahallen92 at aol.com]

Hi,
 I got in my car today after not driving it for three weeks. It drove fine to 
the store and back but when I went to go to the post office I got about a 
half mile from home and noticed the check engine light was on. I tried giving it 
more gas to see if it was the O2 sensor and noticed boost would only come on 
to around 10lbs. I thought maybe one of the vacuum hoses was coming loose so I 
pulled off the road and shut the car off. All the hoses were tight. When I got 
back in the car it would only turn over and over and over. Any idea's on what 
could be the problem? Thanks,

Elijah