Can any of you chaps tell me the implications of permanantly removing the AIV valves.

What exactly is their purpose and is it safe to run without them?

hope this helps :)

 

http://www.twinturbo.net/ttnetfaq/FAQpages/aivrepair.html

Are there any instructions for removing them permanently?

Colin

 

...I tried the repair about 5 years ago - and the gurgling came back so I removed them completely along with all of the tubing and control stuff under the bonnet. Didn't make any difference to performance (although the cars lighter) and no difference to passing an MOT. All you have to do is blank off the pipes that come from the exhaust - do it where they dissapear into the wheel arch plastic covers - so that it looks like you still have them, then a blank on the balance bar on top of the engine, and then hide the connector that controlled them.

 

...and you'll no longer have the gurgling and you'll have a drawer full of totally useless bits...

 

Good luck

 

Jack

 

1990 jap NA 2+2 used daily, 156,000 miles, starting the 6th year of ownership...

i thought you need them for the Cat's, if you want mine that don't gurgle coz there going to the dump soon, no space

You need em if you have cats as far as i know, i checked under my car and noticed that the pipe from the AIV no longer goes to my exhausts as its decatted, so straight off with the AIV valves.

Ok.

I have the Cats still fitted so do I need them and if so what do they do?

IIRC, you can just cap off the exhaust part of the AIV's (at the exhaust)

 

Vijay

Jack,

is yours de-catted mate?