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Diesel_A4
10-03-2006, 12:13 PM
Installing an EVO ms intake on an 01.5 and on my stock airbox there is a hose that runs into the airbox, is this of any use?! I cant figure out if its possibly a smog pump? Where the small air filter would have to go? Or if its just there in case something somehow gets in the airbox its like a run-out for it.

Thanks

mike-2ptzero
10-03-2006, 12:37 PM
It is for the secondary air pump, the kit should come with a filter that goes on that tube.

Kirath
10-03-2006, 01:06 PM
Hook it up or you will start throwing check engine codes.

1 ate T
10-03-2006, 01:09 PM
Originally posted by Kirath
Hook it up or you will start throwing check engine codes.

+1 and you will probably be chugging.

Diesel_A4
10-03-2006, 10:01 PM
anybody know what size the small filter is?! I didnt happen to get one so im gonna go to autozone and get any generic small filter.

nizmosx
10-04-2006, 10:03 AM
they are all standard size however i dont think any of the filters from autozone are going to have the same diameter hose to connect onto the a4. for some reason autozone carries the smaller diameter hose and the audi filter requires larger. this may have changed.

audisnapr
10-04-2006, 10:11 AM
nope niz, you are correct - I have never seen the right size filter from autozone - it's always that tiny little 1/4" opening ones.

mike-2ptzero
10-04-2006, 10:19 AM
Originally posted by Diesel_A4
anybody know what size the small filter is?! I didnt happen to get one so im gonna go to autozone and get any generic small filter.


Well you could always call up Evolution Motorsports and see if they will sell you the small filter, other wise you could always cover the inlet with a screen since it only sucks in air when the pump comes on and that is usually only during cold idle.

bitterchild
10-04-2006, 12:01 PM
Originally posted by audisnapr
nope niz, you are correct - I have never seen the right size filter from autozone - it's always that tiny little 1/4" opening ones.

b/c most people use them for valve cover venting

BranCKY3
10-04-2006, 12:04 PM
I just wrapped one of those in electrical tape and shoved it into the air pump hose, hasn't fallen off yet, it's been almost a year.

nizmosx
10-04-2006, 12:05 PM
^^^^^ hahaha home depot mods. gota love em.