Damn you fault codes!

[Mk1Macca]

Ok, so a quick scan has thrown up the following...

17704 - Cooling system malfunction (which I would guess is the thermostat that needs changing)
17705 - Connection turbocharger - throttle valve pressure hose (is this as obvious as it sounds? Where is this hose located? would this explain my massive drop in power?)
17947 -  Clutch Vacuum Vent Valve Switch Incorrect signal (this one i have no idea! HELP!)

Anyhow, the power only dropped last night, and i've only just scanned for codes. No time to check under the bonnet this morning, due to the snow, so will go and have a look a bit later on for anything obvious, but can anyone give me any clues as to what's going on?

thanks! 

[Rhyso]

Fault codes help

Get yourself a cuppa tea and start reading

Merry Xmas lol

First one is either your stat or temperature sender

[richw911]

17705 oh no....

[Mk1Macca]

Ruh roh.. Why do you say it like that?! That linked thread made it seem like it wasn't too bad?

Anyone have any thoughts on the last code??

[Mr_Orange]

17705 code is notorious for being hard to pin down....  Try the free/cheap fixes first then get your wallet out.

[Mk1Macca]

awww.. sh!te 

What are some of the causes?

[richw911]

awww.. sh!te 

What are some of the causes?

Faulty DV, leak in a boost pipe - the small pancake pipe on is common 

[Rhyso]

awww.. sh!te 

What are some of the causes?

Faulty DV, leak in a boost pipe - the small pancake pipe on is common 

and a possible fault within the PCV system    damn thing is a fricking nuisance 

Glad I don't have a 1.8T 

[richw911]

awww.. sh!te 

What are some of the causes?

Faulty DV, leak in a boost pipe - the small pancake pipe on is common 

and a possible fault within the PCV system    damn thing is a fricking nuisance 

Glad I don't have a 1.8T 

Im not ive never had a boost leak - 137k 

Famous last words 

[dai-cymru]

ha ha your so geeting a boost leak code tomorrow after saying that