Thread: HELP

Originally Posted by haydent

It would be interesting to know if which if any codes came back right away after clear if any, though likely the dealer checked this.

I understand you are in a difficult situation, but you should at least ring around other machanics to see if they have any interest in checking it out, theres a fair chance they will have a snap-on or other brand diag tool that will work well enough on LR for investigation.

The car is in the provinces at Land Rover so I have to give them an answer if I authorize the repairs or I take it back

Hello,
I was able to discuss with the foreman of LR and he was able to explain his diagnosis to me.
They did not reproduce the DTC and explained to me that the P2263 was linked to the variable system of the primary turbo certainly due to the electric motor that it operates.
For the secondary turbo would have been due to an oil leak between the two bodies of the turbo
How to check this?
So that's why they want to change the two turbos.
I would have liked your opinion on this new information.
thank you

P2263 can be caused by a vacuum leak, including a vacuum leak at the active engine mounts. The primary turbo's actuator may be sticking but there are lots of other possible causes so changing the turbo may not fix the issue.
If the dealer proposes to remove the body to change the primary turbo then maybe they're keen to change the secondary at the same time.

Originally Posted by Graeme

including a vacuum leak at the active engine mounts.

Thanks Graeme,
I don't see what link you are talking about.
I'm going to pick up the vehicle this weekend and I plan to check certain elements such as the primary turbo's actuator.
Do you have any advice on things to check?

regards

Hello,

I picked up my vehicle on Friday at LR
And of course no engine faults.
I am attaching a video of the TGV actuator.
There is no leak it is WD40
Can you tell me if you think he is moving normally?

Actuator RRS - YouTube


Thank you

Hi, is that video ur car ? Did you have any work done by LR ?
Oh wd40, i thought it was leak too

I recently spent some time helping a friend with his bmw sequential turbo problems, was a combination of vacuum leaks and old electronic vacuum controllers.

A very handy tool was a hand vacuum pump tool, you can use it on all the diaphragm actuators to manually pull vacuum on them and check if they work or not.

You can also use its gauge to check the system for sufficient 'pressure' or leaks by putting a T in at some point and running the engine.

You can also use it to bench test the 'control valves', to see if they behave correctly with appropriate voltage/control signal and vacuum supply.

Im not totally over your engines turbo system, have you found any diagrams online of it ? such to show the control systems for the turbo actuators ?

Are they sequential turbo or one per V bank/side ?

when you say " variable system of the primary turbo certainly due to the electric motor that it operates." what is the electric motor for ?

The electric reference will be for the solenoid used to control vacuum to the vacuum chamber used to adjust the vane positions. The solenoids can fail but the more common fault seems to be that the vanes themselves get sticky which can often be cured by manually exercising the linkage at the vacuum chamber.
The turbos are sequential. The primary turbo is VVT but the secondary isn't and doesn't have a wastegate, instead having inlet and exhaust isolation valves.

ok, i looked into it a little more, here are you dtc index:
Workshop manual Range Rover Sport 2005-2013 Sec.1 General.pdf - Google Drive

Code:

General Information - Diagnostic Trouble Code (DTC) Index TDV6 3.0L
Diesel , DTC: Engine Control Module (ECM)

and here are about the turbo:
Workshop manual Range Rover Sport 2013 Sec.3 Powertrain.pdf - Google Drive

Code:

Fuel Charging and Controls - Turbocharger - TDV6 3.0L Diesel

Code:

Intake Air Distribution and Filtering - TDV6 3.0L Diesel

lots of great diagrams and info here, example

1.jpg

2.jpg