What is this? - LotusTalk

qball · 12-30-2008, 10:07 PM

Wondering what this part is. Passenger-side of the engine compartment, zip-tied to the roll-bar support.

codymac · 12-30-2008, 10:41 PM

Canister close valve.

qball · 12-31-2008, 06:39 AM

So what does it do? Is it supposed to be connnected to anything?

apk919 · 12-31-2008, 07:04 AM

Quote:

Originally Posted by qball

So what does it do? Is it supposed to be connnected to anything?

It's an air filter with a check valve... it's supposed to allow outside air into the charcoal canister while the engine is running to purge fuel vapors back to the intake manifold. It should be connected to the charcoal canister at the port under the valve... I believe the port that's visible is the fresh air port

qball · 12-31-2008, 07:06 AM

Cool!

Thanks

codymac · 12-31-2008, 08:06 AM

Quote:

Originally Posted by apk919

It's an air filter with a check valve... it's supposed to allow outside air into the charcoal canister while the engine is running to purge fuel vapors back to the intake manifold. It should be connected to the charcoal canister at the port under the valve... I believe the port that's visible is the fresh air port

Beat me to it.

And... it closes (ECU controlled) to seal the system to allow the ECU to run a test to check the system for leaks. In the diagram above, the vapor management valve is the valve responsible for allowing the vapors in the canister into the intake track while the canister close valve allows atmospheric venting (both ways - to allow fresh air to purge the canister and scrubbed air to vent to atmosphere).

I *think* manufacturers now have to route the atmospheric portion back to the airbox and that's why we're starting to see HC screens in airboxes on the latest new cars.

EricH · 12-31-2008, 08:36 AM

So Qball, why was yours unplugged?

qball · 12-31-2008, 08:40 AM

The bottom end is plugged in. I was just making sure the exposed end (in the picture) wasn't supposed to be connected somewhere.

apk919 · 12-31-2008, 08:40 AM

Quote:

Originally Posted by EricH

So Qball, why was yours unplugged?

It's not. The port that's shown is the fresh air vent. The port that goes to the charcoal canister is out of view...

too slow...

nvrblu · 01-06-2009, 02:46 PM

Mine had to be replaced... MIL was coming on... water got inside somehow.

lotusland · 09-29-2009, 03:46 PM

When gas is going into the tank, should this valve allow air to flow out?

kabinski · 09-29-2009, 06:02 PM

Am I the only one who knows what this thing really is? Come on folks, it's the flux capacitor.

12-30-2008, 10:07 PM	#1 (permalink)
qball Wizard of Pugz! Join Date: Feb 2004 Location: Orlando, FL Posts: 4,516 Images: 3	What is this? Wondering what this part is. Passenger-side of the engine compartment, zip-tied to the roll-bar support. Attached Images

12-30-2008, 10:41 PM	#2 (permalink)
codymac short angry bloke Join Date: Nov 2005 Location: where the east tapers out and the west begins Posts: 9,260 Images: 19	Canister close valve. __________________ torque (tôrk) n. - an excuse for the lack of momentum. - let's bring back CanAm & Group B! - have you hugged your Exige today? I'm currently working on my performance driving merit badge. There's always somebody faster, sometimes it's me.

12-31-2008, 08:36 AM	#7 (permalink)
EricH Registered User Join Date: Nov 2007 Location: Dallas, Texas Posts: 621	So Qball, why was yours unplugged? __________________ Click links to see my 2008 Lotus Exige-S 240 , '99 M3, 505rwhp '89 Mustang ( sold) , '05 WRX STI ( sold) homepages or here for my M3 vid (11MB)

01-06-2009, 02:46 PM	#10 (permalink)
nvrblu ... _ . ..._ . Join Date: Jan 2006 Location: Mesa, AZ Posts: 3,386	Mine had to be replaced... MIL was coming on... water got inside somehow. __________________ Steve -- '05 Laser Blue, Biscuit, Sport/Touring, Starshield

09-29-2009, 06:02 PM	#12 (permalink)
kabinski Registered User Join Date: Nov 2004 Posts: 51	Am I the only one who knows what this thing really is? Come on folks, it's the flux capacitor. __________________ kabinski

12-31-2008, 06:39 AM	#3 (permalink)
qball Wizard of Pugz! Join Date: Feb 2004 Location: Orlando, FL Posts: 4,516 Images: 3	So what does it do? Is it supposed to be connnected to anything?

12-31-2008, 07:06 AM	#5 (permalink)
qball Wizard of Pugz! Join Date: Feb 2004 Location: Orlando, FL Posts: 4,516 Images: 3	Cool! Thanks

12-31-2008, 08:40 AM	#8 (permalink)
qball Wizard of Pugz! Join Date: Feb 2004 Location: Orlando, FL Posts: 4,516 Images: 3	The bottom end is plugged in. I was just making sure the exposed end (in the picture) wasn't supposed to be connected somewhere.

09-29-2009, 03:46 PM	#11 (permalink)
lotusland Registered User Join Date: Oct 2006 Location: San Diego Posts: 179 Images: 7	When gas is going into the tank, should this valve allow air to flow out?

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