I have a 91 accord that will not start after being left for a few days.
It cranks and seems like it almost catches but will not start.

I have tried the following
I can hear the fuel pump turn on when I turn the key to on.
If I take out the spark plug and start, I can see it sparking.  I
replaced the spark plugs just in case (and because it was time anyway).
I sprayed some starter fluid in the air intake and it started for a
second.
I got 2 gallons of gas and put it in there to make sure I didn't run
out of gas (it was low but not out).
I'm going to try to replace the fuel filter this weekend.

Any ideas.  Could this just be condensation in the gas tank (this is in
seattle and it is pretty wet.  I was think I would get some dry gas and
put it in just in case.

Thanks.