What does this do? Disco.

D

Davey

Guest

• Dec 1, 2004

• #1

1998 GS 300
Its an electrical item under the 'wheel chock' under the bonnet and seems to
have various leads and thin tubes leading to the turbo setup, the electrical
connection was unplugged on mine so I plugged it in, can't seem to notice
any difference. What's it for?

 

S

SteveG

Guest

• Dec 1, 2004

• #2

Exhaust Gas Recycling (EGR) control box. It was probably unplugged to
switch it off, which tends to give a slight boost to engine power at the
expense of higher emissions.

HTH

Regards

Steve G


Davey wrote:
> 1998 GS 300
> Its an electrical item under the 'wheel chock' under the bonnet and seems to
> have various leads and thin tubes leading to the turbo setup, the electrical
> connection was unplugged on mine so I plugged it in, can't seem to notice
> any difference. What's it for?
>
>

 

A

AN6530

Guest

• Dec 1, 2004

• #3

>Subject: What does this do? Disco.
>From: "Davey" [email protected]
>Date: 01/12/2004 21:26 GMT

>Its an electrical item under the 'wheel chock' under the bonnet and seems to
>have various leads and thin tubes leading to the turbo setup,

Cruise control vacuum pump?

Steve. Suffolk.
remove 'knujon' to e-mail

 

D

Davey

Guest

• Dec 2, 2004

• #4

Thanks for that! Do you think I should just unplug it?

"SteveG <"s.goodfellow"@blueyonder" <"dot> wrote in message
news[email protected]...
> Exhaust Gas Recycling (EGR) control box. It was probably unplugged to
> switch it off, which tends to give a slight boost to engine power at the
> expense of higher emissions.
>
> HTH
>
> Regards
>
> Steve G
>
>
> Davey wrote:
>> 1998 GS 300
>> Its an electrical item under the 'wheel chock' under the bonnet and seems
>> to have various leads and thin tubes leading to the turbo setup, the
>> electrical connection was unplugged on mine so I plugged it in, can't
>> seem to notice any difference. What's it for?

 

R

Richard

Guest

• Dec 2, 2004

• #5

Sounds like the vacuum pump for the cruise control. Do you have cruise
control, if so, does it work?

"Davey" <[email protected]> wrote in message
news:[email protected]...
> 1998 GS 300
> Its an electrical item under the 'wheel chock' under the bonnet and seems
> to have various leads and thin tubes leading to the turbo setup, the
> electrical connection was unplugged on mine so I plugged it in, can't seem
> to notice any difference. What's it for?
>

 

D

Davey

Guest

• Dec 2, 2004

• #6

It's a manual Richard, no cruise.
"Richard" <richardsemail [email protected]> wrote in message
news:[email protected]...
> Sounds like the vacuum pump for the cruise control. Do you have cruise
> control, if so, does it work?
>
> "Davey" <[email protected]> wrote in message
> news:[email protected]...
>> 1998 GS 300
>> Its an electrical item under the 'wheel chock' under the bonnet and seems
>> to have various leads and thin tubes leading to the turbo setup, the
>> electrical connection was unplugged on mine so I plugged it in, can't
>> seem to notice any difference. What's it for?
>>
>
>

 

A

Austin Shackles

Guest

• Dec 2, 2004

• #7

On or around Thu, 2 Dec 2004 09:19:28 -0000, "Davey"
<[email protected]> enlightened us thusly:

>Thanks for that! Do you think I should just unplug it?
>
>"SteveG <"s.goodfellow"@blueyonder" <"dot> wrote in message
>news[email protected]...
>> Exhaust Gas Recycling (EGR) control box. It was probably unplugged to
>> switch it off, which tends to give a slight boost to engine power at the
>> expense of higher emissions.

On our TDi, I put a 2p[1] coin in the pipework of the EGR. fits beautifully
in between the flanges and blocks it nicely

it's not failed a test as a result.

[1] make sure it's a recent, steel 2p, not an old Cu-Ni one. The steel ones
are tougher. Check with a magnet, natch.

 

S

Simon Barr

Guest

• Dec 2, 2004

• #8

In article <[email protected]>, Austin Shackles wrote:.
>
> On our TDi, I put a 2p[1] coin in the pipework of the EGR. fits beautifully
> in between the flanges and blocks it nicely
>
> it's not failed a test as a result.
>
> [1] make sure it's a recent, steel 2p, not an old Cu-Ni one. The steel ones
> are tougher. Check with a magnet, natch.
>

Excellent!!

I was wondering what to use to block mine when I get around to it. I'm also
going to be fitting the CAT-less exhaust section at the same time.


--
simon at sbarr dot demon dot co dot uk
Simon Barr.
'97 110 300Tdi.

 

A

Aled

Guest

• Dec 14, 2004

• #9

In article <[email protected]>, [email protected] says...
> I was wondering what to use to block mine when I get around to it. I'm also
> going to be fitting the CAT-less exhaust section at the same time.

Actually, can someone explain to me what the EGR valve is and why I want
it blocked off? Surely it had a purpose...?

Cheers,
Aled.

 

A

Andy.Smalley

Guest

• Dec 14, 2004

• #10

"Aled" <[email protected]> wrote in message news:[email protected]...
> In article <[email protected]>, [email protected] says...
>> I was wondering what to use to block mine when I get around to it. I'm also
>> going to be fitting the CAT-less exhaust section at the same time.
>
> Actually, can someone explain to me what the EGR valve is and why I want
> it blocked off? Surely it had a purpose...?
>
> Cheers,
> Aled.

It allows a small portion of exhaust gases to be burnt again
this tends to be at higher engine speeds by blocking it off
the engine will produce more power as the cylinder will contain
only fuel and air and not carbon monoxide/dioxide


--
Andy

SWB Series 2a ( dressed as a 3) "Bruce"
It's big, it's mean it's really, really green

 

A

Austin Shackles

Guest

• Dec 14, 2004

• #11

On or around Tue, 14 Dec 2004 00:48:43 -0000, Aled <[email protected]>
enlightened us thusly:

>In article <[email protected]>, [email protected] says...
>> I was wondering what to use to block mine when I get around to it. I'm also
>> going to be fitting the CAT-less exhaust section at the same time.
>
>Actually, can someone explain to me what the EGR valve is and why I want
>it blocked off? Surely it had a purpose...?

feeds exhaust gas into the inlet under certain situations. Stands for
Exhaust Gas Recirculation. Needless to say, you don't want it doing that
all the time, and the valve can stick so that it does. It doesn't see to do
a lot, really... It's supposed to reduce nitrogen oxides. It shouldn't
work at full load, but does in theory at idle and part load.

 

S

Simon Barr

Guest

• Dec 14, 2004

• #12

In article <[email protected]>, Austin Shackles wrote:
>
> feeds exhaust gas into the inlet under certain situations. Stands for
> Exhaust Gas Recirculation. Needless to say, you don't want it doing that
> all the time, and the valve can stick so that it does. It doesn't see to do
> a lot, really... It's supposed to reduce nitrogen oxides. It shouldn't
> work at full load, but does in theory at idle and part load.
>


According to the Defender workshop manual:-

Operation of the EGR system is dependent on the following:

Engine temperature - must be between 20C and 100C approx.

Engine speed - must be between 630 and 2850 rev/min.

Engine load - calculated by throttle position sensor.

EGR valve lift position.

Duration of engine idling. (shuts off after 25-30 seconds idling)


--
simon at sbarr dot demon dot co dot uk
Simon Barr.
'97 110 300Tdi.