I think I've finally solved my fuel pressure problem. Apparently the XJR uses a second fuel pump driver module for the second fuel pump, and mine appears dead. That would explain why the car runs fine below about 75% throttle, but the fuel pressure goes away after that. I checked with two Jaguar dealers and they both told me the same thing - that the part is discontinued and unavailable. They both said I'd probably have to scrap the car if I couldn't find a used one.

I don;t like buying used electronics, and this looks like a Ford part anyway. The Jaguar part number is C2C23781, and the part number on the module is 2W9F 9D372 AB. There is also a Ford logo. Does anyone know of a cross reference for this?

 

I picked up an xjr fuel pump module on ebay.
I'll have a look at the part number in the morning and post

 

I'm sure it's the same part number as the one on mine. It's a Ford part and it almost certainly fits vehicles other than the Jaguar, but which ones? It's no longer available through Jaguar but maybe it is, or a suitable replacement, through Ford.

 

 

What car do you have?
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2003 x350 xjr

 

I am not sure but I "think" this Dorman part might work for your car? You have the 4.2L SC V-8 and while the Dorman application chart does not show the XJ with the 4.2L SC engine it does cover the S-Tpe R which also had the 4.2L SC engine. Plus this also fits the 3.0L V-6 as well as a number of Fords.

Does your module look like this? I don't know where this module is located in your car either but it's probably in the trunk somewhere.




If so I would take a chance and see if it would work.
Here is the plug to match up.





They are expensive at around $150 but they are obsolete from JLR and Ford. I did find a brand new one for $50 on EBay.
Dorman Fuel Pump Module

Up to you but a used one could be a solution as these are not terribly failure prone. But if it were my car and I could get a new module for $50 I would take it now!
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Thank you. It looks very much like mine.

 

Can you do us a favor? With the cars getting older everyday and parts going obsolete please report back if that part works or not. A picture of your old module with the part numbers on it would be a great help. I know you need a few more posts before you can upload pictures. I think 10 posts are required.

That could be a critical part in keeping the cars on the road. Plus with Dorman involved the parts will be much cheaper and widely distributed. Now I have had some problems with Dorman and don't consider their stuff equal to OEM parts but if that's all that is available. Well we are stuck using it.
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2
2002
W9
Jaguar XJ
F
Fuel Delivery/Electronics

9D372 - Fuel Pump Driver

They put these FPDMs in like 10 billion cars the difference is part numbers is because of the bracketry.

 

Thanks 👍

 

Thanks Xalty!
So I did find the correct module and they are very common. That's good to know.
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