The cam sensor is a hall effect sensor, it is basically a transducer that varies it's signal or output voltage in direct response to changes in the magnetic field generated by the rotating camshaft and the magnets installed into it.
The OBC ( on board computer or ecc engine control computer ) uses the information to time the spark and injector firing. This was formerly done mechanically by the distributor and a set of gears. The sensor approach has proved to be much more reliable and precise, and allows computer enhanced timing changes to be made while the engine is being operated providing better efficiency and adaptation to changing conditions and driving needs.
P0340 is a failure in the cam shaft sensor circuit. That can prevent the engine from running.P0340 is a failure in the cam shaft sensor circuit. That can prevent the engine from running.
Cam Sensor Circuit
circuit means in that loop which can be crankshaft sensor, cam shaft sensor, or timing chain or belt what ever you car has hope this helps
You locate cam-sensor check for loose or broken wires ,if this doesn't work replace cam-sensor.
Camshaft Position Sensor Circuit Intermittent cam position sensor - common failure on these cars
The cam sensor is mounted into the front timing cover just behind or near the water pump. Note that failure of the cam sensor to work properly is usually not cause by a faulty cam sensor but more commonly a failed permanent magnet located in the cam drive gear.
get a new cam position sensor (about $35)
P0340-CAMSHAFT POSITION SENSOR CIRCUIT, The cam sensor is the pick up plate in the distributor.
the cam sensor reads speed and works with the crank position sensor to tell your coil packs when to fire your spark plugs and what cylinder to fire on
you need to recalabrate with a tech 2 at gm dealer Or you will have to replace the failed cam sensor.
The 94 and 95 are the same,no cam sensor.1996 and 1997 are differant in one way.The 1996 and 1997 have a cam sensor. .The 97 has a cam sensor and the 94 does not.The 1996 has a cam sensor too.
That year did not have a cam sensor.