I tried to crank the car. It would turn over but not start. It started to back fire but would not start. It seemed like only one plug was firing. I replaced the distributor and rotor. It would not start. What else can I check?

Im no expert my any means but my 98 accord done the same, I just had to have a new key programmed... Does the immobilizer light flash?

It does flash sometimes and sometimes it doesn't.

Mine came on and continuosly flashed when it wouldn't start... If it came on and went out it recognized my key and started, I got tired of having to wait sometimes, So I had a new key made, It may be worth a shot?

Perform tests, in Sections A and B, below:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-46563.html