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Mar 31, 2007 | 10:50 AM

ScaryFast

Thread Starter

Safety Car

Joined: Jul 2001

Posts: 4,871

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From: Detroit's West Side MI

What is this?

EDIT: QUESTION ANSWERED. Read on only if you're bored.

Or if you're Aardwolf.

It's on the airbox, driver side. It looks like a hole where air can get sucked into the motor without going through the filter. Did something used to be plugged in here? Should I cap this hole?

Last edited by ScaryFast; Mar 31, 2007 at 02:49 PM.

Mar 31, 2007 | 11:04 AM

Aardwolf

Race Director

Joined: Jun 2004

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From: WI

I would cap it. Mine doesn't have that. What is that cover over the filter?

Mar 31, 2007 | 11:12 AM

RollaMo-LT4

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From: Rolla Missouri

2021 C4 of the Year - Unmodified Finalist

St. Jude Donor '10 thru '25

That's where the hose coming from an air pump (located in lower wheelwell) connects from. If the air pump is no longer there (you or some previous owner removed it), then I would cap that hole.

It's all part of the EVAP Canister Hoses.

Mar 31, 2007 | 12:30 PM

vader86

Team Owner

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From: Athens AL

C7 of the Year - Unmodified Finalist 2021

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Yeah you need to cap that off

Mar 31, 2007 | 12:46 PM

chaos on wheels

Burning Brakes

Joined: Apr 2001

Posts: 799

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From: Fremont CA

Your local autoparts store should have this 3/4" 'bypass cap'. Fits perfectly!

-Jason.

Mar 31, 2007 | 01:41 PM

96GS#007

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From: Texas

A hose for the Air Injection Reaction (AIR) system goes there. Cap it off since it's behind the air filter and the engine will suck unfiltered debris thru there.

Mar 31, 2007 | 02:05 PM

ScaryFast

Thread Starter

Safety Car

Joined: Jul 2001

Posts: 4,871

Likes: 15

From: Detroit's West Side MI

I removed the AIR system awhile ago...either I forgot to cap it or the cap fell off.

Either way, it's nicely capped and now ready to not send roadkill into my intake...

Thanks for the answers.

Mar 31, 2007 | 02:11 PM

ScaryFast

Thread Starter

Safety Car

Joined: Jul 2001

Posts: 4,871

Likes: 15

From: Detroit's West Side MI

Quote:

Originally Posted by Aardwolf

I would cap it. Mine doesn't have that. What is that cover over the filter?

Not sure what you mean...the top of the filter is stock, except I cut off half of the rubber "thing" that is on top of the filter intake. You know, the whole cut lid mod. Got me like...35 hp