Author Topic: Mystery object... (Read 4416 times)

ejectorbed · « **on:** October 22, 2007, 04:38:52 AM »

During my (almost complete) engine swap, I discovered this item hanging in the engine bay.
Anyone know what it is and where it's supposed to be attached?

strypt · « **Reply #1 on:** October 22, 2007, 07:25:21 AM »

It's supposed to be attached between the intake and that black canister (don't know the english word for it)

right under the air flow meter.

1991 E30 M42 · « **Reply #2 on:** October 22, 2007, 09:24:00 AM »

purge valve for the evap system, it puts a vacuum on the fuel tank

asubimmer · « **Reply #3 on:** October 22, 2007, 09:47:13 AM »

yup thats exactly right, its the purge valve. It plugs into the hose coming from the tank and then into the charcoal canister. FYI if you unplug the wires you will get a CEL.

romkasponka · « **Reply #4 on:** October 22, 2007, 10:32:58 AM »

Quote from: asubimmer;36279

FYI if you unplug the wires you will get a CEL.

What does it mean?

bmwman91 · « **Reply #5 on:** October 22, 2007, 10:42:47 AM »

For your information

Check Engine Light

Vladi · « **Reply #6 on:** October 22, 2007, 04:04:24 PM »

If you don't have the carbon canister anymore just plug the hose up with a screw or something otherwise the engine will run like crap because it would be a vacuum leak.

asubimmer · « **Reply #7 on:** October 22, 2007, 04:10:57 PM »

mine is fine vented to the atmosphere...

weird

Mister V · « **Reply #8 on:** October 26, 2007, 08:17:01 AM »

it can do your engine no harm if it isnt attached, so as asubimmer says mine is also vented to the atmosphere...

bmwman91 · « **Reply #9 on:** February 28, 2008, 12:41:17 PM »

So, are you guys basically unplugging the engine side and plugging the hose end, and just leaving the cannister outlet open to the atmosphere? Or do you need to plug it? Can someone give me some info on how they are bypassing the thing?

I am hunting vacuum leans, and one potential spot it the 1-way valve being shot. Forget dropping $72 on a new one.

Author Topic: Mystery object... (Read 4416 times)

Mister V