Mazda Repair: mazda protege dies, backyard mechanic, mazda dealership

Question
I OWN A 1993 MAZDA PROTEGE WITH 180K. A WHILE BACK THE CAR STARTED DYING WHILE DRIVING.IT WILL ALWAYS TURN OVER AFTEER DYING.IT NEVER DIED CONSITANTLY SOMETIMES IT WOULD DIE RIGHT AWAY AFTER STARTING AND SOMETIMES IT WOULD GO FOR A DAY OR TWO BEFORE DYING SOMETIMES IT WOULD START RIGHT BACK UP AGIAN SOMETIMES NOT.IF I LET IT SIT A DAY OR TWO IT WOULD START UP AGAIN AND RUN FINE. WHEN IT DOES START UP IT RUNS GOOD WITH NO SPUTTERING OR HESITATION.NOW IT JUST SITS IN THE YARD BECAUSE IT DIES MORE THAN IT WILL RUN AND HARDLY WILL START AT ALL ANYMORE. I REPLACED THE TIMING BELT TWO MONTHS BEFORE I STARTED HAVING PROBLEMS. RECENTLY I HAVE TRIED A NEW IGNITOR, COIL AND A NEW IGNITION SWITCH AND NONE OF THEM CHANGED ANYTHING, ALL WERE USED PARTS.A BACKYARD MECHANIC TYPE TOLD ME I NEEDED TO GO TO THE DEALER AND GET THE COMPUTER RESET, NOBODY AT THE MAZDA DEALERSHIP KNEW ANYTHING ABOUT HAVING TO RESET THE COMPUTER. I HAVE NOT HAD ANYBODY PROFFESIONAL LOOK AT IT.HOPE YOU HAVE SOME IDEAS FOR ME THANK YOU!

Answer
Hi Andy thanks for asking.
 No that will not be the situation. A computer will never have to be reset. the problem sounds to be more like an EGR valve ,have that tested and let me know how it is, if it OK then get back to me and I can give you a few more suggestions.
Good Luck
Chris P