Someone please help me, I'm trying to locate my fuel pump relay on my 05 XJR supercharged. i have a p2634 FUEL PUMP B circuit high code.
the car is idle-ing rough and whenever i come to a stop it jerks bad, and whenever i have my foot on the brake at red light for example, i feel like the car is pushing me forward.

i did a fuel trim test in it, and based on it it seems that the car runs lean at idle and when i rev it at around 2.5k rpm engine runs leaner especially bank 1.

i tested my fuel pumps, disassembled them both, they looked like brand new, clean, then applied 12v to the motor pumps, and they both spin the same; they both prime when i try to start the engine, so based on all this im assuming it's something it the module, relays something.

i was everywhere on this internet and couldn't find the fuel pump relay.
some say it's in the trunk's fuse box unde the non serviceable relays, but they're all unmarked, owners manual is extremely useless.

if i need to add more details i will.

thank tou

 

It's shown as R6 in the rear fuse box and R6 is
not the plug in type it's integral with the PCB.
Above is not for your model but likely still applies.
See Electrical Guide in 'Sticky"