I got this picture off the forums here somewhere and Dad wants to know if someone has a better quality version? When I print it out it's very blurry. I have used Gimp to enhance the quality but he still can't make out the locations on the engine.

 

Guessing as to the cause of a vehicle malfunction can become quite expensive. Rather than replacing sensors, why not post the OBD2 codes so a focused diagnosis can be made?

Do not operate the vehicle under any conditions that cause the MIL to flash as permanent damage is occurring to the catalytic converter(s)!

 

a) Guess you haven't downloaded and installed JTIS yet - the original picture in in there and just about anything you need.
https://www.jaguarforums.com/forum/s...archive-66031/

Just select model year after clicking on Service button. Use the Text Navigator button on bottom to navigate. You can use the Global Search as well.

b)https://www.jaguarforums.com/forum/g...oved-**-33347/

Make sure you have one these OBD2 scanners to read codes off the OBD connector under the driver dash. This is essential, optionally take it to Pep boys/autozone have them read them for free.

c) if you have a specific problem(s) - you might as well post your issue in the forum (do a search first) - bet someone can point you in the right direction in no time - so you don't chase and replace unnecessary parts. If your "Check engine light is on" get the codes first.

Good luck.