help!! car won't start


starter is cranking but she won't fire up. it's an 87 T. what steps should i take to pin point the problem? i can hear the fuel pump. it sounds a little different under the hood though... almost like i can hear air coming out. i'm almost positive i have gas. i reset the chip several times. this sucks i want to drive it. anyone? it has fired up a couple times but only when it wants to. :confused: Thanks!!!