A good number of factors contribute to crank shaft position failure and very often, this failure with the crankshaft sensor will bring about problems with engine timing. Take a look at this common signs if your crank shaft sensor has gone bad.

IRREGULAR ACCELERATION
You notice this when the engine speeds up,
continue reading....http://www.automobileglobe.com/signs-of-bad-crankshaft-sensor/

Another signs you experience from a bad crankshaft Sensor is vehicle stall after covering some kilometre.

leeyack:
A good number of factors contribute to crank shaft position failure and very often, this failure with the crankshaft sensor will bring about problems with engine timing. Take a look at this common signs if your crank shaft sensor has gone bad.

IRREGULAR ACCELERATION
You notice this when the engine speeds up,
continue reading....http://www.automobileglobe.com/signs-of-bad-crankshaft-sensor/

Im a mechanic and recently I had a 2008 Toyota Camry in my workshop, the crankshaft sensor wiring was wrong so the car refused to start, it took the intervention of 3 reeires working together to finally correct it.
After fixing the eleceical connection One of the sensor was bad so the car was doing hard starting, immediately after I replaced it. The problem was solved

Good