2001 mazda mx5 miata won,t crank. replaced crank, cam, and knock sensors. flashing engine light and missing.

SOUND LIKE CRANKSHAFT SENSOR OFF.TOO MUCH GAP FROM CRANKSENSOR TO CRANKSHAFT PULLEY PULSE WHEEL.

When you say it wont crank is it the engine will not turn over when you turn the key?? ,if so check your battery connections as i had one the other week and that was all its problem.Check all connections from the battery to the starter.Get your hands on a multimeter and check the earths ,all you do is set the meter to dc volts and connect either clip to the negative pole of the battery,probe the earths with the other one if you get a reading of over half a volt then you got a bad earth,alternatively you can check all the positive connections the same way.Let me know ok.