Hoping somebody has experienced this and can advise: car runs well from cold, get to destination and shut off, come back out 10 minutes later to continue trip, engine cranks but won't fire...so far have replaced dist. cap, rotor, spark plugs, ignition control module...still does it...are there any sensors that could be responsible for this kind of behavior?

 

Most likely a main relay is the culprit - see:

Honda Civic failure to start? « NinjaTales Blog

 

dont know if your still looking for advice but swap out the ect (engine coolant temp sensor) did it to my civic that had same problem now running great