I have a 2010 accent that cuts off and sometimes doesn't start..When the car does not start the check engine light does not light up..I had the computer checked and they couldn't find anything wrong with it.any ideas?

 

When it doesn't start, check for spark and fuel
If both are not available then check the crank sensor

When it doesn't start, check the crankshaft position sensor.
See that there is power and ground to the sensor
Then check to see if there is a signal to the ECU.