Help: all of a sudden car wont start. need to get my car running again asap

[djsukebe]

Here's the situation: I've been driving my car normally and hadnt had a problem except for a fuel pump fuse going about a year. all of a sudden one morning i tried to start the car, it started for like 2 seconds idle went down and died out. i tried to start it again but it wasnt firing up. the starter turns but sounds kind of slower than usual.

here is my set up:

91 240sx, 5spd
s13 red top sr20det, stock everything even intercooler piping

- checked ecu codes, only gave me 55 (no malfunction)
- changed and checked spark plugs and coils, they all spark
- i feel and smell fuel on the new spark plugs
- connection plugs on cam angle sensor and throttle position sensor look normal as always


What else can I check before i get it towed to a shop? if i had a garage i would try more stuff, but im in an apartment parking lot which doesnt let me really work on my car. thanks in advance.