How is this for logic?
Since the only DTC's you have relate to a failing fuel pump we can assume that the supply to the pump is ok

and therefore the fault lies with the pump itself ie worn out.?

I wouldn't be surprised if there is no DTC specifically for a failed fuel pump I know there is no DTC for a failed light bulb!.

The pinpoint tests for the fuel system are towards the very end of the workshop manual US004 sect 310.

JTIS is the workshop manual for Jaguars and may be the same as US004.

I am not sure about Pierburg pumps either .Any indication of pressure delivered on your old pump?

I know that there should be 55psi at the rail on a N/A engine but neither 3.5 or 5 bar =55psi.

There have been conversations on this forum about them and we could find out more.

I suggest you go about removing the pump by firstly removing rear seat.

Clips (2) are awkward and are shown in Richard Olssen's post on this page.
Push towards the doors I think.
Disconnect battery (you will need radio code and to reset windows when job finished).
Warning:I have never done this job myself. lol
There could be problems with hardened plastic hoses.
Cheers

 

Hi guys,

Quick update: I have now received two fuel pumps - one is claimed to be a factory original removed from a 2004 XJ8, the other a mid priced pump that is assembled in a fixture designed to go into a 2003 E39 BMW 540i (4.4L V8). I sourced the used pump on eBay and teh new pump on Amazon (for quick delivery and ease of returns). At this time, I can state that the pumps do NOT have the same electrical connectors on them. Please see below:



Electrical connection of claimed X350 sourced pump.



Electrical Connection of new BMW E39 540i pump.

I have not yet removed the existing pump, though I figured out how to remove the back seat, thanks to the helpful article here:
https://www.jaguarforums.com/forum/x...t-back-151728/

I now need to know the correct way to remove the fuel feed line on the pump assembly as seen in the image below:



Fuel feed line on fuel pump.

I am wary because I don't want to break anything as I want to get the Jag running this weekend. Any help would be greatly appreciated. Thank you.

Andy

 

The top one is not the right pump.

The second one ex Amazon I think is correct.

When you have removed the pump you can compare them.