Possible electrical connection, ignition coil, ignition control module ( igniter ), ignition switch, PGM-FI main relay.
Does the engine crank during the no-start or does nothing happen at all? Does the check engine light come on and go out when turning the key to the ON position? If/when the check engine light goes out during the no-start condition, can you hear a moderately loud 'click' from behind the drivers dash? When the no-start occurs is there spark at the spark plugs?
that Part where you say. "If/when the check engine light goes out during the no-start condition, can you hear a moderately loud 'click' from behind the drivers dash?" I have that problem... in my 91 Accord... I've changed the ignition switch... a few relays... and still it does nothing when I turn the key... I know the batt and the starter is good cause I can get it to turn when I hot wire it. Help me if you can.
HA HA!! I found the Problem.. it was the Neutral Ignition switch on top of the clutch under the dash.. the rubber bit on the clutch that presses the button had rotted and fallen off. I just replaced it and car started right up. ^.^ yay!
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