I know this has been mentioned before about smoking issues but mine was solved relatively easily.
Dotty has been using oil and smoking for a while now and failed miserable on the emissions.
Spoke to my mechanic who has worked with the JX before and insisted that the engine was not terminal and that it was overfueling.
A new set of injectors later and she sailed through the MOT. Phew.
So if your JX is smoking, the injectors may be worn and at fault.
