Purchased another 08 supercharged RR for cheap about 2 years ago. Did not move but ran well with crankshaft correlation fault. Front driveshaft broke, easy fix. Correlation fault, not so much. I did hear the chain rattle occasionally, But I decided it was too good to just save for parts, so in we go. Main timing chains were tight, secondary chains looked good as well. Tensioner on bank 1 stuck in collapsed position during a second look 3 days later. Replaced it and retimed the engine. Runs even better now but i still have a correlation fault. I then swapped the timing solenoids to the opposite banks to see if the fault moved with the solenoid, but it did not.
Got my gap tool out and did some comparisons with the other Rover.
"Intake variable camshaft timing" on both banks reads within 5 degrees per bank on both Rovers. "Actual inlet variable valve timing" on the good Rover both banks are the same (0-0.4). On the faulty Rover bank 2 matches the good Rover (0-0.4) but bank 1 reads 9-11 degrees.
Does this point to a faulty camshaft position sensor?

Attached are the graphs that i took from each vehicle.
https://drive.google.com/file/d/1uu8KleuSBdLJXQyMiadj7cq0-FLidDDB/view?usp=sharing
https://drive.google.com/file/d/1DqGWNU90F1wxbjdkeqgwetMbEDuHghjv/view?usp=sharing

I currently am trying to find the cause of system too lean codes. PO0171 and PO0174
A little history
Purchased last year around April PO171 code showed up almost immediately. Cleaned Maf sensor, and put injector cleaner into fuel. That seamed to clear the code until September. Then the code started showing back up intermittently. Stored the truck until spring. Smoke tested intake over winter and found no leaks. When i started driving the truck a week ago both engine lean codes came back. Added injector cleaner to fuel that cleared the bank 2 (P0174) code but the bank 1 (P0171) comes back. There are no other engine codes shown. I started watching some live values while driving the fuel pressure fluctuates a bit at idle and while cruising at 2000 RPM. It falls to 41psi at times. and then quickly recovers. It does increase to about 55-60 psi under harder acceleration.
Today I removed the spark plugs and the front three spark plugs of bank1 (right side not sure what the cyl numbering is) are white compared to the rest which are a nice light brown.

Im trying to determine if the injectors are partly plugged or the fuel pump is possibly getting weak. It does not run rough or stumble when driving.
Scan tool is a IID tool
2008 Range Rover Supercharged Canadian vehicle