Thread: Fault code P2263-22: Turbo System

Full replacement of secondary turbo with genuine, including all gaskets and seals, new drain pipe, labour and 12months wty. Around 4K all up as quoted, finished next week.

Originally Posted by Eric SDV6SE

Full replacement of secondary turbo with genuine, including all gaskets and seals, new drain pipe, labour and 12months wty. Around 4K all up as quoted, finished next week.

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I’m not understanding why the turbo is replaced if one of the valves is sticking or poorly, aren’t they separate items?

Scott

I do have to concur. What are they thinking? I am not questioning their diag, but don’t have all the details. Seems a harsh diag.

Got the car back today, runs sweet as again. no issues.
Have the old turbo, i will strip and post up what i find.

Loss of boost pressure when actuated, plus oil leak into clean air side are signs the turbo is worn out. Everything else checked out fine, solenoids etc.
Also fitted modifed oil drain pipe which btw also eliminates oil getting into the intercooler.

Injector balance check - all good, rechecked all vacuum lines and road test.

Pretty happy with that.

After having a talk with Rover Tech earlier this week mine's going into Autocode on Tuesday for further testing. Will know more (hopefully) then.

Autocode found and fixed a vacuum leak but here is a twist. The vacuum leak was associated with where vacuum hoses are connected to the active engine mounts.

From the workshop manual

The PCM controls the vacuum operated engine mounts via an active engine mount solenoid. The mounts operate (active engine mount solenoid activated which makes the mounts soft) at idle speed, and are switched off when the engine speed goes above a predetermined threshold. The threshold is engine speed dependant; the active engine mounts are switched off when the engine speed increases to 1250 Revolutions Per Minute (RPM).

Loss of vacuum anywhere affects the effectiveness of the whole vacuum system including the operation of the vacuum operated components associated with the secondary turbo.

However, vacuum to the mounts is only applied at low engine speeds which possibly explains why I only seem to get the DTC on flat or down hill, ie after cresting a hill and backing off to descend maybe causing a transition between bi turbo to single turbo mode but now having less than normal vacuum to operate the secondary turbo isolation valves because the vacuum is leaking away as the engine mount vacuum leak comes into play due to low rpms.

Will hook up the camper tomorrow and take it for a test drive.

Interesting, I replaced all vaccuum lines including those to the engine mounts BEFORE i went to Dovers, so after their check, they deemed the vaccuum system fully ok.

Does this mean that if the engine mount solenoid fails, you will drop into restricted performances mode? I would seem to think so...

This means at least 3 solenoids that affect secondary turbo system operation.

Hope that was all it was for you.

Re vaccuum lines, just replaced same on my 18yo motorbike, at least two of the lines crumbled in my hands when taking them off. i have to reset both the primary and secondary throttle position sensors on the bike now. Can't stress enough how important it is to change these lines to avoid more serious issues.