I have suddenly become aware that my 2007 L322 TDV8 is belching black smoke when accelerating/kick down. The general opinion is over fuelling??? I have no warning lights showing and there is no lack of performance. On plugging in my IID Tool, the only engine fault code I get is "P023D-22 (6C) Manifold absolute pressure-turbocharger/supercharger boost sensor A correlation-General signal failure-signal amplitude>maximum". I cleared the fault, took for a test drive, car still smoked and fault had returned on rechecking.
Any help would be appreciated. Thank you.
Regards,
Mike.

Most likely a split turbo hose

If so, the good news is it's a cheap fix & nothing serious

Do a search - there's loads of threads

Thank you for your quick reply Alistair. I have already had a quick look at the Turbo hoses, I guess I may have to remove them to check properly. Thanks again for your help.
Regards,
Mike.

Have just removed the right hand turbo hose, and sure enough 3" split!! Thank you Alistair for making me check it properly!
Regards,
Mike.

That's a weird split. Was it underneath? ______________________________
Vogue tdv8 08MY poverty pack - wow

Is the split at the intercooler or engine end of the hose? Thanks. ______________________________
Vogue tdv8 08MY poverty pack - wow

Glad that's all it seems to be

It is at the engine end on the top, (a bit obscured by some other hoses.) Will be interesting to see if replacement of the hose sorts the engine fault code. I'm also surprised such a serious split didn't send it in to limp mode!

Yep, that should fix it.

Where it goes every time seems to be the failure point  There is nothing that can't be fixed with a hammer😜😜
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Old thread resurrection ......

Can someone tell me where this hose runs from and too, pictures would be great

Thanks Remember:- amateurs built the ark
Proffesionals built the titanic

Diagram here: https://www.advancedfactors.co.uk/intercooler--hoses-1949-c.asp

(That's for a 3.6 which is what the original thread relates to - I presume the 4.4 is very similar)

It's the top hoses that are prone to failure.

4.4 diagram: https://www.advancedfactors.co.uk/intercoo...1795-c.asp 2016 Skoda Octavia VRS Estate
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MikeO

Your a star, yes 3.6 and the nearside has a split in it at intercooler end.

New ones ordered. Remember:- amateurs built the ark
Proffesionals built the titanic