my 1998 mazda protege ran great,till quite while driving,now cranks but no start on 1998 Mazda Protege

cranks but no spark,and fuel pump wont kick on.ive replaced the distributor,with another used on(car was running)....the crank positioning sensor reads .557ohms what could be the problem?

Asked by for the 1998 Mazda Protege
Pump needs dist. reference to run, timing belt ok?
timming belts good,fuel pump was working untill car just quite while driving and no spark.
I have a 00 n same problem my timing belt is good theres spark and fuel replaced the mass air flow sensor but still wont start