89 civic starting...not starting
 

I HAVE A 89 CIVIC DX WITH 1.5 THE CAR WILL NOT START IN HOT WEATHER,IT HAS SPARK ,HAVE CHANGED THE DISTRIB,CAP ROTOR AND IT GET FUEL AND SPARK HAD A GUY GIVE ME A MAIN RELAY OUT OF THE BONE YARD IT SEEMED TO WORK IT,I GOT IT AT BEGINNING OF THE WINTER NOW ITS GETTING HOT BACK THE NOT STARTING ,I DID NOTICE THAT AFTER YA TURN KEY TO FIRST POSITION THE CHECK ENGINE LIGHT GOES OUT AND YOU HEAR A RELAY CLICK IT WILL START,BUT IF THE LIGHT GOES OUT AND YOU DONT HEAR THE RELAY CLICK ,WELL U CAN CRANK IT TILL THE STARTED MELTS AND IT WILL NOT START .COULD MAIN ELAY BE BAD AGAIN IT DID SEEM WHEN I PARKED I NSHADE IT SEEMED TO START SO ANY HELP WOULD BE GREAT THANKS MATT