Help!!! Identify this...is something missing???

[ashylarry]

My girlfriend's ti has been running pretty rough lately, but I thought a lot of it was just vibration from the resonator from the aftermarket exhaust from the previous owner...

Oh yea, dude had a bootleg intake as well, but 318ti.org member eurohb/bryan hooked it up with a stock airbox...

On to the problem: So I popped the hood to see what was all the ruckus was about and I noticed this sucking/intake noise coming from this thing im pointing to in the pic.
I dont know what it is, but I'm sure it shouldn't be sucking anything without a filter or having that outlet wide open like that...
Can someone identify it, tell me what it is, and what do I need to remedy it.
A filter? A hose that connects somewhere? A cap?

Thanks in advance

[PittsburghSteelers318ti]

Sorry I can't answer you question, but I think the enfine would idle much better if you hold your hand over the end of the hose.

[spidertri]

The thing you are pointing at is the secondary air pump. It is supposed to have a hose there that connects to the airbox and gets filtered air. It only runs for ~30 seconds at start up when the engine is cool to help emissions.

http://www.realoem.com/bmw/showparts...59&hg=11&fg=50

I believe part #7 is the hose you are missing.

[Keir]

There should be a part at the back of the air box where your wrist is (or to the right) that a hose will slide onto.

[tiFreak]

Originally Posted by Keir

There should be a part at the back of the air box where your wrist is (or to the right) that a hose will slide onto.

he might have an earlier airbox though, I'm pretty sure Bryan's ti is a 96 so it wouldn't have come with a SAP

you can always just get a little breather filter from Autozone/Pep Boys/Advance etc. and stick it over the end so it's not sucking up dirty air

[ashylarry]

Yeah, the airbox is from the older ti's. There is no place for a hose to connect to the airbox...and that damn output is soooo wide in diameter that I cant find a small filter to attach to it.

I guess Im on the hunt for a 97-99 stock airbox then...

[hotmilk400]

yeah, that needs some kind of filter. it might be filled with water or something. i know a few people have opened them and dumped it out, but look for a thread on that before u do to much.