EGR valve v new turbo

[Benscab123]

UPDATE :
So, after putting a new jubilee clip on the turbo air pipe and a new seal, my turbo underboost and EGR insufficient flow faults are gone !

Thanks for all your help guys, especially Marc and Richard who have been extremely patient as I’m a total novice . I’m pretty sure this won’t be the last you hear from me though.............. till next time .

[white exec]

You know what they say...

*

*Except for very small hoses, like fuel and LHM, when the bloody thing distorts the hose with the stiff bit under the wormy thing, and creates a nasty leak, involving having to cut the hose back to something undamaged, by which time you find the hose is actually too short to meet up with its spiggit, and there's nothing worse than an unconnected and dripping spiggit, is there?

[Benscab123]

Looks like I spoke too soon, the underboost can back this morning. No idea what to do next.

[GiveMeABreak]

How long have you driven the car since the repair in your last post - I'm just wondering whether the fault needs clearing and then needs a little while to adjust?

[Benscab123]

I cleared the fault then drove it around 80 miles till it came back.

[Benscab123]

Just noticed that this pipe is sucked in , should it be like that or does that indicate something is amiss ?

[GiveMeABreak]

That's your distribution chamber side air union hose, part number: 0382LW. (£69.78 form Citroen inc.). It does looked deformed somewhat....

Some parts here:

https://spareto.co.uk/oe/0382lw

[white exec]

Why not try just whipping off that hose clip, and pushing the dent out?
Might have been given a push/clout. Unusual for intake hoses to collapse...

[Benscab123]

What if any difference would it make to performance ?

[white exec]

I would guess none.

[Benscab123]

Anyone got any idea what all this means in terms of my EGR insufficient flow and turbo underboost problems please ?