I recently bought an XFRS (from auction) which I think the timing chain is going on it. Just wanted to get thoughts from the community.

It's MY 2014 (11 years old), and has done 113,500 mi/182,700km


Symptoms:

1. When I accelerate quickly, I lose power momentarily before it comes back and all is normal

2. The engine idles, not so smooth, its not rough, but it's definitely not smooth

3. The engine seems like there's a rattle/clicking, but I'm not entirely sure, I have nothing to compare it with. See the video below.

4. Keep getting engine management lights, which will clear themselves, or I clear them, but they come back. Fault codes below

5. Performance Restricted mode, which clear after an engine restart


History & codes:

For records, today is 11/10/25 113,500mi/182,700km

- 24/09/19, 49,600mi/79,800km

Changed spark plugs, changed supercharger drive belt

- 20/01/22, 77,900mi/125,400km

"Super charger tensioner rounded unable to remove req new tensioner and belt". No action taken.

144,000mi 108 months service. Renew front accessory drive belt not done.

- 09/07/25 111,800mi/179,900km

Owner said EML came on. 2 codes stored for charge air cooler sensor, and camshaft a position actuator bank 2. No EML on at service. No action taken.

- 08/08/25 112,500mi/181,000km

Current EML investigated, found Bank 2 Intake Solenoid Faulty, replaced and tested okay

- 12/09/25

Bought car

- 16/09/25 EML investigated

P2092-00 Camshaft position actuator A - Control circuit low, bank 2.

U3000-49 Control module - Internal electronic failure

U1000-00 Solid state driver protection activated - Driver disabled

- 17/09/25 Performance Restricted mode x2 + DSC not available

P0122-00 Throttle/Pedal position sensor A circuit low

P0222-00 Throttle/Pedal position sensor/switch b circuit low input

P2135-00 Throttle/Pedal position sensor/switch a/b voltage correlation

P2092-00 Camshaft position actuator A - control circuit low, bank 2

P0341-00 Camshaft position sensor circuit range/performance

P0343-00 Camshaft position sensor A - circuit high (bank 1 or single sensor)

P0368-00 Camshaft position sensor B circuit high (bank 1)

- 04/10/25 113,000mi/181,800km EML

P2092-00 Camshaft position actuator A - control circuit low, bank 2

- 06/10/25 113,250mi/182,260km EML

P0366-00 Camshaft position sensor B - circuit range/performance (bank 1)

P0341-00 Camshaft position sensor A - circuit range/performance (bank 1 or single sensor)

- 07/10/25 113,260mi/182,280km EML

P2092-00 Camshaft position actuator A - control circuit low, bank 2

- 08/10/25 113,280mi/182,300km Performance Restricted

P0122-00 Throttle/pedal position sensor A - circuit low input

P0222-00 Throttle/pedal position sensor B - circuit low input

P0237-00 Turbo/supercharger boost sensor A - circuit low

P0341-00 Camshaft position sensor A - circuit range/performance (bank 1 or single sensor)

P2127-00 Throttle/pedal position sensor/switch E circuit low input

P2135-00 Throttle/pedal position sensor/switch A/B voltage correlation

U0401-64 Invalid data received from engine control module/powertrain control module

- 10/10/25 113,400mi/182,500km EML

P2092-00 Camshaft position actuator A - control circuit low, bank 2


What I've done:

- New main and aux batteries

- Accelerator pedal diagnostic (all range inputs look fine)

- Contact cleaner and reseat on all CJB/BCM(a) plugs, instrument cluster plugs, gearshift plug, MAF plugs, throttle body plugs, ECU plugs

- No evidence of corrosion on anything

- Checked all including mega fuses

- Reseated and contact cleaner earth mounts in boot, behind instrument cluster, and right side wheel arch

- Couldn't find any damaged wires in boot, under centre console, behind instrument cluster, under floor treadplates, or in engine bay

Videos:
Engine Start - Engine Sound 1 - Engine Sound 2 - Timing Chain -
What are your thoughts?

 

your codes are because a 5v reference is getting pulled down like i’ve said before.

it sounds like any other 3/5l they’re loud

 

The timing chain looks ok but poking at it with a piece of wood on the sprocket tells you nothing. You need a broad flat screw driver blade and go straight down on the chain where it is well clear of the sprocket , then check the chain for deflection when you lever on it with the screw driver blade. Also it all looks clean in there so it has had frequent enough oil changes.

 

Okay thanks all. I'll get my flathead and go further down the chain, try to get some movement on it. But like you said @xalty , it's that 5V line which might be shorting out somewhere.

I've also had a closer look at the in question camshaft sensor and it's wiring (as far as I could see), and it all looks okay, no chaffing or anything. I gave it some contact cleaner on the plug anyway just to be sure. I also don't think the Jag workshop changed the "Bank 2 Intake Solenoid Faulty, replaced and tested okay", as it doesn't look at all new.

I'll give them a call Monday and seeing as it was only "replaced" a few months ago, have them take a look at it again.

 

Alright, I think I've finally found out what's going on.
I booked the car in for some unrelated work at FAB Auto in Chichester, the guys there are bloody fantastic, really know their stuff and super friendly.
What we all found out is that I was correct in thinking Jaguar didn't change the intake solenoid on bank 2.....instead Jaguar changed the one that was working on bank 1. Jaguar put the new solenoid in the wrong bank....
The guys at FAB Auto also told me that when I pull up into the higher revs, the solenoid can't make that more extreme position, which is very consistent as to why I can't push the car hard. Cruising at low revs is fine, but if I try to push it, I either get a lapse in power, Performance Restricted mode, or an engine light come up.
So I called up Jaguar and basically told them to fix it properly for free. Got the car booked in and they'll hopefully sort it soon [img alt=""]data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7[/img]

Furthermore there is a bit of slack on the timing chain itself as they went past the sprocket and pushed it in. I suspect my car (built between 10/13 - 01/14) didn't come with the 2014 upgraded steel cap guides to stop the steel tensioner from slowly wearing down the older softer aluminium guides. So I'm looking at booking in a full timing chain overhaul, something I was going to do anyway.