Engine speed sensor (crankshaft position sensor) or ECM Relay. Either one will cause the engine to stall/quit, or NOT start when
the part is acting up.
The Crankshaft Sensor usually fails when the engine is hot and then
works again when the engine is cold. When it fails completely, it
won't work when cold either.
When the ECM relay fails, the "Check Engine Light" in the dash will
not come ON (when the key is in the ON position).
The next time the engine does not start, check to see if the "Check
Engine Light" is ON, when the KEY is in the ON position.
Wednesday, April 18th, 2012 AT 7:34 PM