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Author Subject: Air filter question
phil19gti

Seasoned Pro

Location: Altrincham

Registered: 17 May 2004

Posts: 1,756

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Post #1
Can anyone help me regarding a pipe on the air filter body?

I'll try and explain this without a photo. If you look down at the filter body, it has two pipes, one which is the 90 degree bend one which goes to the throttle body and another pipe, which comes off the body.

Mine doesn't appear to have this second pipe and instead has tape over the end.

Where does this other pipe go to and is it important?

Thanks.

________________________________________

2006 Performance Blue Mondeo ST TDCI
1999 Black 306 Rallye
1991 Lazer Green 205 1.9 GTi
2003 Blue Focus RS
1999 White 306 Rallye
1992 Red 205 1.9 GTi
1988 Red 205 1.6 GTi
Posted 4th Jan 2010 at 19:04
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mullybaby

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Location: Hertfordshire

Registered: 21 Oct 2006

Posts: 419

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Post #2
Its supposed to go the ICV, (idle control valve), i f you have a small filter over your valve inlet then you don't need this, but if not then you engine could be breathing unfiltered air on idle.
Posted 4th Jan 2010 at 19:24
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phil19gti

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Location: Altrincham

Registered: 17 May 2004

Posts: 1,756

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Post #3
mullybaby wrote:
Its supposed to go the ICV, (idle control valve), i f you have a small filter over your valve inlet then you don't need this, but if not then you engine could be breathing unfiltered air on idle.


No, I think you're getting mixed up by my poor description. I mean on the metal air filter body, there's two pipes that are supposed to come off that.

- One is the 90 degree pipe which goes to the throttle body pipe.
- The other one, on mine just has tape, and no pipe.

________________________________________

2006 Performance Blue Mondeo ST TDCI
1999 Black 306 Rallye
1991 Lazer Green 205 1.9 GTi
2003 Blue Focus RS
1999 White 306 Rallye
1992 Red 205 1.9 GTi
1988 Red 205 1.6 GTi
Posted 4th Jan 2010 at 19:41
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mullybaby

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Location: Hertfordshire

Registered: 21 Oct 2006

Posts: 419

Status: Offline
Post #4
aah I gotcha Wink

The other pipe should go up to the slam panel as a ram-intake - could do with getting a cold air feed to it if yours is missing
Posted 4th Jan 2010 at 19:44
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phil19gti

Seasoned Pro

Location: Altrincham

Registered: 17 May 2004

Posts: 1,756

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Post #5
Just found this photo:



The bit I need is the bit on the right at right angles to the vertical pipe. Where does it attach to?

________________________________________

2006 Performance Blue Mondeo ST TDCI
1999 Black 306 Rallye
1991 Lazer Green 205 1.9 GTi
2003 Blue Focus RS
1999 White 306 Rallye
1992 Red 205 1.9 GTi
1988 Red 205 1.6 GTi
Posted 4th Jan 2010 at 19:49
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mullybaby

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Location: Hertfordshire

Registered: 21 Oct 2006

Posts: 419

Status: Offline
Post #6
Just had a quick think, If this is taped up then your inlet is air tight? ie, no power?

*edit- at work so can't see your pic
Posted 4th Jan 2010 at 19:48
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phil19gti

Seasoned Pro

Location: Altrincham

Registered: 17 May 2004

Posts: 1,756

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Post #7
There's the vertical feed that goes to the throttle body.

Then there's the side vertical feed for the air intake, and off this at 90 degrees is a strange shaped plastic container.

What does this do?

________________________________________

2006 Performance Blue Mondeo ST TDCI
1999 Black 306 Rallye
1991 Lazer Green 205 1.9 GTi
2003 Blue Focus RS
1999 White 306 Rallye
1992 Red 205 1.9 GTi
1988 Red 205 1.6 GTi
Posted 4th Jan 2010 at 19:52
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mullybaby

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Location: Hertfordshire

Registered: 21 Oct 2006

Posts: 419

Status: Offline
Post #8
LOL dont think im of any use until i can see the pics

There is a small resonator that is attached to the airbox- I took this off mine- you don't need it.
Posted 4th Jan 2010 at 19:55
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funscott

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Location: edinburgh / dunfermline

Registered: 17 Jul 2007

Posts: 1,723

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Post #9
The item in that picture on far right is the resonator.

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Posted 4th Jan 2010 at 19:56
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phil19gti

Seasoned Pro

Location: Altrincham

Registered: 17 May 2004

Posts: 1,756

Status: Offline
Post #10
Is it needed?

________________________________________

2006 Performance Blue Mondeo ST TDCI
1999 Black 306 Rallye
1991 Lazer Green 205 1.9 GTi
2003 Blue Focus RS
1999 White 306 Rallye
1992 Red 205 1.9 GTi
1988 Red 205 1.6 GTi
Posted 4th Jan 2010 at 19:57
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funscott

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Location: edinburgh / dunfermline

Registered: 17 Jul 2007

Posts: 1,723

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Post #11
its to reduce sound. isnt vital.

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Posted 4th Jan 2010 at 20:00
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phil19gti

Seasoned Pro

Location: Altrincham

Registered: 17 May 2004

Posts: 1,756

Status: Offline
Post #12
So taping the opening up is adequate?

________________________________________

2006 Performance Blue Mondeo ST TDCI
1999 Black 306 Rallye
1991 Lazer Green 205 1.9 GTi
2003 Blue Focus RS
1999 White 306 Rallye
1992 Red 205 1.9 GTi
1988 Red 205 1.6 GTi
Posted 4th Jan 2010 at 20:02
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funscott

Seasoned Pro

Location: edinburgh / dunfermline

Registered: 17 Jul 2007

Posts: 1,723

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Post #13
yes

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Posted 4th Jan 2010 at 20:07
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phil19gti

Seasoned Pro

Location: Altrincham

Registered: 17 May 2004

Posts: 1,756

Status: Offline
Post #14
Thanks lads.

________________________________________

2006 Performance Blue Mondeo ST TDCI
1999 Black 306 Rallye
1991 Lazer Green 205 1.9 GTi
2003 Blue Focus RS
1999 White 306 Rallye
1992 Red 205 1.9 GTi
1988 Red 205 1.6 GTi
Posted 4th Jan 2010 at 20:11
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