P0341 obd2 code description and its relation to your camshaft sensor

Whenever P0341 fault code shows up, you need to check your camshaft sensor and its wirings including its connection to the cranshaft sensor. Both sensors must be synchronized in order to function.

P0341 Engine CMP sensor "A" ckt range/performance Bank 1

camshaft sensor

This is a camshaft sensor obd2 code. If you have this flashing in your dash panel, check the camshaft wiring integrity for insulation, presence of oil and short. If possible measure the sensor itself with a DVOM and compare it with a new one. If you can, check the wiring continuity from the camshaft sensor up to the engine computer pins.

On some engines, the camshaft sensor is synchronized with the crank sensor and has to be checked too because it will need a special tool for the installation. If the camshaft sensor is OK, the next thing to do is to check your timing belt which could be off 1 tooth and could throw this code also. Depending on the mileage, consider also to inspect the timing belt tensioner and replace it if it has too many miles since the front timing cover is out already.

Never open the front timing cover without the service manual or you will be trapped by special engine procedure which might be necessary for the engine you are working. ATS can help you in these special instructions because you will be assisted by our mechanic when you do this job. Assistance will also include any wiring diagram together with the common fixes for the obd2 code.

How a typical camshaft sensor works:

The camshaft position sensor works the same way as the crank sensor so that it has also a 3-wire hall-effect sensor which is connected to the PCM (powertrain control module). Using a target magnet attached to the end of the camshaft, it has four different poles. As the camshaft rotates, so does the magnet.

The cam sensor has identical electrical circuits going to it, similar to the crank sensor, 9-volt power supply, 5-volt signal line, and sensor ground. As the cam (and magnet) rotate, the 5-volt signal line voltage fluctuates from 5 volts to 0 volts. Once the PCM has both sensor inputs, it can determine which coil to control and which injector to energize.

The location of the cam position sensor (CMP) varies with the type of engine and ignition system. On DI systems, the cam sensor is integrated into the distributor; on other applications, it is located on the front of the engine and gets its reference signal from the cam sprocket.

When working on remote type cam sensor, do a visual inspection of the reluctor teeth. Any high spots of the reluctor teeth can interrupt the magnetic field of the coil and the magnet. When these interruptions happens, it is transmitted from the pickup coil to the engine control unit (ECU).

On distributor type cam sensors, use a scan tool to monitor the cam counts and set them as close to zero as possible by adjusting or repositioning the distributor. When replacing the synchronizer shaft and the cam sensor, a special alignment tool is required. Please contact ATS for the specialized tool needed for synchronization.

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