Good question Slow progress. Fuel does degrade.

I only put 15 pounds fuel in the tank in the p400e so if I get issues I can add more to make it work.
I am not going to charge the car for a few days so I can use the petrol. I think petrol degrades within months.

Kot wrote:

So my 1st tech fault after my 1st month of ownership

Noticed the amber engine light illuminated, I was not far from home so carefully drove home.
Searched the forums (as you do lol) then took my new BT Autel and plugged in.

There was P0047 fault code Turbocharger/supercharger boost control 'A' circuit low. Possible causes
Faulty turbo charger boost control solenoid
Turbo charger boost control solenoid harness (short to ground).

So next step I reset the code and all returned to normal -amber engine alarm disappeared, took the car for a good spin.
All good very happy with myself (why I dont know).

A week later (yesterday), yes you guessed it, the light came on again, noticed it about 3 mins into journey to the local forest.
Early morning, car still warming up, and not gone over 40 mph yet.

It reset again, and again took it for a good run.
Looks like ~I have an intermittent fault, my guess its maybe getting water at a connection or harness somewhere is rubbing and its an intermittent earth issue.

I intend to have a good look under the bonnet but dont want to go to far due to it still in warranty.
Booked in with the Dealer 1st week of May (Yes its pathetic trying to get a decent time slot at the moment) it is an approved used FF with LR extended Warranty, also I have an other separate issue I will post soon.

Has anyone had the same intermittent fault code? if so what was the issue.

Another update: Dealer surprisingly helpful, confirmed the N375v2 Service Instruction has already been completed when the vehicle was being prepped for Approved Used sale. Even checked the parts had been ordered/fitted etc. on their records.

So it's off to my local indy then! Hope it doesn't need a whole new actuator FFRR SDV8 Autobiography

Just been to helpful indy garage. He confirmed all my thinking, it's defo oil in that loom but he said it's worth trying a new 'mod' loom first as the level sensor is fully functional and he also said a lot of the time when the dealers fit the mod they don't clean out the existing wiring harness. I also need an ECU update so hopefully that will help with service intervals. Booked it in to be done FFRR SDV8 Autobiography

Update! So I got the "mod"/recall loom replaced again at my trusted indy today. The plan was for him to re-do the job, but this time take time to really clean out the wiring properly with brake cleaner and an air line. Apparently (despite the approved used LR dealer confirming it!!) The mod/recall had NOT been done! So either the service guy on the phone did a good job of telling me porkies, OR some LR tech got an hours feet-up time when he was supposed to be fitting this mod as the parts and the book time were charged to this car as part of its pre-approved prep! For now I'm just happy to know where I'm up to and that the mod has been done properly. The warning lamp is off for now!

I've also had a full ECU software update. FFRR SDV8 Autobiography

Warning lamp returned. What is not sure now is whether it's because oil is tracking or if the turbo actuator is now goosed from the oil. I suspected the second turbo wasn't working so booted it on the motorway today and got restricted performance. And the following errors. So it's not well!!

Back to garage next week

============================
OBD-IIOBD-II
DTCs: 10
----------------------------
P0047 [0x0047]
Turbocharger (TC) boost control solenoid/supercharger (SC) boost control solenoid - circuit low
Status: Pending
----------------------------
P0234 [0x0234]
Turbocharger (TC), engine boost condition - limit exceeded
Status: Pending
----------------------------
P22D5 [0x22D5]
Turbocharger (TC) inlet valve position sensor - circuit range/performance
Status: Pending
----------------------------
P2562 [0x2562]
Turbocharger (TC) boost control position sensor - circuit malfunction
Status: Pending
----------------------------
P006A [0x006A]
MAP sensor/MAF or VAF sensor bank 1 - correlation
Status: Pending
----------------------------
P006A(85) [0x006A85]
MAP sensor/MAF or VAF sensor bank 1 - correlation
Status: Pending, Test failed since last DTC clear, Test not completed during this operation cycle
----------------------------
P0234(77) [0x023477]
Turbocharger (TC), engine boost condition - limit exceeded
Status: Pending, Test failed since last DTC clear
----------------------------
P22D5(36) [0x22D536]
Turbocharger (TC) inlet valve position sensor - circuit range/performance
Status: Test failed, Test failed (current drive cycle), Pending, Test failed since last DTC clear
----------------------------
P2562(84) [0x256284]
Turbocharger (TC) boost control position sensor - circuit malfunction
Status: Test failed, Test failed (current drive cycle), Pending, Test failed since last DTC clear
----------------------------
P0047(11) [0x004711]
Turbocharger (TC) boost control solenoid/supercharger (SC) boost control solenoid - circuit low
Status: Pending, Test failed since last DTC clear
============================ FFRR SDV8 Autobiography

Might as well keep updating this now.

After a couple of hours in the garage we are no further. Essentially we have two error codes persisting, one relating to the secondary turbo actuator and another relating to the secondary turbo valve.

Current working hypothesis is that damage was done to the turbo actuator by the oil in the loom (which now has the recall fix done, see above) which is causing that fault, and that the sticking valve was due to me driving carefully for so long due to EML and then hoofing it at the weekend. The value fault would cause the restricted performance.

Vehicle is currently driving fine, and secondary turbo working fine above 2500RPM. EML comes back on with a warm re-start.

The strangest thing is that the two turbo faults (value and controller) remain in memory even if cleared on various systems, extinguishing the EML. That is very strange.

Going to drive for a week or so and collect more fault codes to get a better data set to work from. FFRR SDV8 Autobiography

Hi James, any updates on this? Did you get it resolved?

Sorry I just saw this whilst looking for something else. Yes long story short, everything above was true really - the loom recall had not actually been done, unfortunately the oil damaged the turbo actuator (most annoyingly so that it did actually work, but it woudl just create a spurious fault code when the 2nd turbo was activated).

The loom mod was done, the lines cleaned, the actuator replaced and all was well again. Then I sold the car  FFRR SDV8 Autobiography