88 prelude wont start

I have an 88 prelude type-s auto. that would stop starting at certain
times and start right back up after setting for an hour or a day,or
die while driving. I replaced the fuel relay sensor but the problem
has not gone away. A friend told me that it could be my crankshaft
poistion sensor, but it doesnt not say in my Haynes mannual if I even
have one. If anyone can help me and let me knwo what they think the
problem could be that would be awsome.
Thanks
Eric

 

Is it fuel injected? If so the relay for the fuel pump may be intermittently
not working and you are getting no fuel. wolf

 

The car is fuel injected, and when it want start I do not hear the
fuel pump starting when I turn the key.

 

As Wolf said, the main relay me be the culprit. If the main relay fails
the fuel pump will not turn on. You can find many references to this on
the web.
http://www.markl.f9.co.uk/howto/electrical/main-relay/main-relay.htm
tells you how to repair the relay instead of buying a new one.