91 Accord starting issues
 

Thought we had this problem taken care of but guess not...
Always had problems with starting with no pattern, rhyme or reason. Would just crank and not fire. Went through a few trouble shooting things. Open gas cap, and that worked for a while. Then finally when it quit for good, found that the ignition switch was bad, so replace it. Also had an aftermarket anti theft something where had to turn the headlights on to start the car. (Thought it was factory as our Jeep did this, but Honda guys said no.) When replacing the switch we removed that too thinking in the past that might be the issue.
Well wife had it happen again today at work, and after setting for sometime, and trying along the way, it came back to life and been fine ever since. Anyone have an idea of where to go from here? Really thought we worked this bug out and it hadn't done it in months!
Appreciate the help, thoughts and ideas...
Richard

Check fuel pressure ,it maybe the fuel pump.