P0340 and P0341 on your Jaguar X-type

P0340 and P0341 in your Jaguar X-type are flagged when the computer sees something wrong with the right hand bank Camshaft Position Sensor circuit. Wires seldom go bad so your most likely problem is your camshaft position sensor.

Here is the link if you just want to buy the sensor and not read anymore: Standard Motor Products PC467 Camshaft Sensor

There are two other possible causes for this code, in the rare case that this doesn't fix your problem. The computer or a wire between the computer and the sensor. If you unplug the sensor you can measure the resistance between the pins at the connector for the sensor and if you see some sort of resistance then the wires are most likely in good condition.