1994 Other Isuzu Models Cranks over but doesn't start

I have a 1994 Isuzu Amigo, one month ago I drove it to the grocery store and when I came back out it would crank over but wouldn't start. So, I replaced the fuel pump, fuel filter, and the fuel pump relay. I tried to start it after those repairs and it still cranked over but didn't start, then a day later it started out of the blue. I ran great for the whole month. Then the other day I was driving it and swerved to miss running over a deer (dead already) but ran over a part of it. The motor stopped and it once again cranked over but wouldn't start. This time I replaced the Distributor cap, rotor, plug wires and spark plugs and still no change. I am now in the middle of replacing the timing belt. I this doesn't work do you have any suggestions. I have power going to the fuel pump and the spark plugs (the old ones) smelled like gasoline. I am running out of ideas.