my 87 300zx wont turn over

[Brennon13]

So I've been working at this for a week now, i went out to my car one day and my car would not start. All it does is try to turn over but doesn't.
It is not a "tick", it actually sounds like its gonna start but doesn't. I manage to start it sometimes but RARELY ever. My timing belt was last replaced in 2009.
If i do get it started it'll drive fine sometimes and as soon as i push on the gas pedal harder it start to putter and itll be hard to get it up a hill and then itll die on me.
Since this problem occured i bought new spark NGK Spark Plugs and Wires and installed them, that was not the problem. It is still not running.
My fuel pump works because i can hear it wen i turn the key before actually trying to start it.

Does anyone have any idea what my problem might be?

[sx moneypit]

So the car cranks but won't run?

[Brennon13]

Yes

[OriginalWheelman]

If it's cranking it should only take two things to start. Fuel and spark. It may not run right after that, but if you have them it should at least stumble. If I had to take a guess I'd say fuel pump / fuel filter.

[Dattebayo]

Have you checked the battery voltage? Also, after it dies, do you have a hard time starting it up while it's still warm? What I mean is can you start it after it's been sitting for a while only?

[Brennon13]

OriginalWheelman- i bought a fuel filter and it still doesnt start. but however i did somewhat clean off my distributor cap and rotor and it ALMOST started. so i am going to buy a new cap and rotor next monday. that still doesnt solve my throttle problem though :/ i did talk to some people at Oriellys Auto Parts and they said to check my vaccume hoses because the air/fuel could be too lean and just kill my car so i might have to replace them. (Could it be my VAC fuse?)

Dattebayo- No i will try to check battery voltage. And my engine hasnt been warm for like a week because it wont even turn over anymore at all. i just dont want to try and start it so much that i flood my engine.

[yodawill2000]

Could be a MAF issue as well me thinks.

[OriginalWheelman]

Are you smelling fuel when you crank it over a lot? The cap and rotor could cause it too. Like I said, spark and fuel. Get those in order fist. Even if it had disconnected vacuum lines it should still start. If your battery is dead, make sure you charge it for a while before you try and crank it over. It takes more than a minute or two to get the juice in there it needs.