P0340 - Camshaft Position Sensor 'A' Circuit Malfunction
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery
- Lack/Loss of Power
- Engine Stall
The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. This information is used by the Engine Control Module(ECM) to control ignition and fuel injection. The camshaft position sensor senses the retraction of camshaft (intake) to identify a particular cylinder. The camshaft position sensor senses the piston position. The sensor system consists of a rotating part, typically a disc, as well as a static part, the actual sensor.
When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field cause the voltage from the sensor to change.
When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, utilizing timing of cylinder identification signals.
P0340 2003 CHEVROLET TRAIL BLAZER
P0340 2003 CHRYSLER NEON
P0340 1998 FORD WINDSTAR
P0340 2003 KIA SEDONA
P0340 2002 NISSAN ALTIMA SEDAN
P0340 2003 NISSAN ALTIMA SEDAN
P0340 2005 NISSAN XTERRA
P0340 2004 NISSAN ALTIMA SEDAN
P0340 2005 NISSAN ALTIMA SEDAN
Any information is appreciated. Thanks