i'm looking to try and shed some light on my front vac lines working off the attached pic, the pipe with 3 red dots should be the recirc valve and the forward 2 pipes together should be the carbon canister, now these were connected to the correct ports on my engine but when i pulled the recirc line to replace the hose i had already disconnected it at the valve, so i blew through it to check and i couldn't even blow through it as though something was connected on the end.

 

i then pulled what should be carbon canister line and connected some hose to it and blew through it and this was connected to the recirc valve all in all very strange all the pipes looked original at the recirc valves anyone else come across this? or is the info on this pic wrong?

Hi Mate,

Hopefully this may help.

yes i've seen that map and that is what has confused me the 2 pipes together should be the carbon canister but it's not on my car as i said i've blown through the hoses to check and the 6mm canister vac line definitely goes to the recirc, and what should be the recirc is blocked when i try to blow through it my best guess is they have somehow been reversed, either from factory (maybe a friday afternoon job) or by a previous owner but all pipes are stock

 

when i disconnected what should be the recirc valve on the side of the plenum and run the new hose direct to the valve i had a vac leak from the front of the car

Edited September 12, 201510 yr by Black-zed

so what else have you disconnected? are there any hoses not connected? did you check the recirc? it could have a problem.

 

I know a lot of people remove bits and re-configure stuff, I can't see it being from the factory.

has your's even got a carbon canister?

and how about the recirc on the other side?

 

good luck..

as far as i know i still have a carbon cannister under the bonnet car was stock when i had it aiv,prvr etc all intact only mod was the boost controller, i'm going to have another look today it just seems a bit strange looking at the canister line it's a hard pipe all the way down, but when i blew through mine air was definitely coming out of the disconnected recirc vac line.

It's very much worth while removing all the guff, it's a lot less confusing and less cluttered. The the carbon canister is a bit annoying and hard to follow. The main thing is that you get the important stuff connected and create an air tight system. I actually went through and replaced ALL the remaining vac lines on mine.

all my vac line have been replaced with silicone lines, except 3 as i didn't have enough hose which were to bypass the vac line under the plenum to the carbon canister and the 4mm vac line for the canister the short lines from the recircs to the hard pipes. but they have been replaced now just the wastegates to boost controller to do but i'll get that done when the plenum is off.

 

anyway back to this issue i've now sussed it and what a pain, it turns out the positions of the hard pipes have been bent around a bit, so the recirc line was bent over under the outer turbo pipe along with the 4mm vac line for the canister and the 6mm canister line was under the inner turbo pipe so initially the pipes were connected into the engine the wrong way round although it looked correct not sure if this would have made any difference when running but at least the lines are how they should be now