If EGR valve failure is detected on diesel Jaguar X-Type, it is possible to try the valve in order.
Typically, an EGR valve error does not mean a failure. There's a great chance that the potentiometer's mud was dirty. To get to it, you need to remove the valve cover from the EGR valve. Whistling with your wand sticks.
The EGR valve has a throttle position sensor. It may also be incapacitating (plastic shekette and receptor opening). This sensor can also be replaced separately, fit for a Ford.
