300 Tdi EGR valve removal, worth it ?

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
H

Hirsty's

Guest
Seen and heard quite a few people get rid of these. Two questions; what
benefit does it have and is it likely to affect the emmissions test at MoT
time ?

Ta JoH

--


" ..... it is the provenence of knowledge to speak, and it is the privelage
of wisdom to listen"


 
Hirsty's wrote:
> Seen and heard quite a few people get rid of these. Two questions; what
> benefit does it have and is it likely to affect the emmissions test at MoT
> time ?
>
> Ta JoH
>
An EGR is Exhaust Gas Recirculation. The some of the unburned
hydrocarbons that exit with the exhaust are routed back through the
engine to get another try at combustion. I'm not sure if you have
catalytic converters installed but, the O2 sensors located fore and aft
of the converters are also part of the emission control system. It's all
a very carefully balanced act when it comes to the emission control
system on vehicle now. Get yourself a fault code reader before you start
removing parts. It'll save you a lot of heartache and grief later.

Yes, it will greatly effect the emission test. Your vehicle will fail.
 
Jeffrey S Austin wrote:
> Hirsty's wrote:
>
>>Seen and heard quite a few people get rid of these. Two questions; what
>>benefit does it have and is it likely to affect the emmissions test at MoT
>>time ?
>>
>>Ta JoH
>>
>
> An EGR is Exhaust Gas Recirculation. The some of the unburned
> hydrocarbons that exit with the exhaust are routed back through the
> engine to get another try at combustion. I'm not sure if you have
> catalytic converters installed but, the O2 sensors located fore and aft
> of the converters are also part of the emission control system. It's all
> a very carefully balanced act when it comes to the emission control
> system on vehicle now. Get yourself a fault code reader before you start
> removing parts. It'll save you a lot of heartache and grief later.
>
> Yes, it will greatly effect the emission test. Your vehicle will fail.

Not on a British MOT it won't - that is only a smoke test, not an
emissions test per se.

--
EMB
 
>Yes, it will greatly effect the emission test. Your vehicle will fail.

Not in the UK it won't

Early 300 tdi's did not have EGR and they have the same MOT test limits
as the later ones.

--
Marc Draper
 
Jeffrey S Austin wrote:


>
> Yes, it will greatly effect the emission test. Your vehicle will fail.

Do you work for the ministry of misinformation or what?

--

Subaru WRX
Range Rover 4.6 HSE (The Tank!)
110 Hi Cap (Ben)

'"Opinions are like arseholes, everyones got one"


 


> Early 300 tdi's did not have EGR and they have the same MOT test limits
> as the later ones.
>
Mine does have an EGR it is a late 97.
I have taken the CAT out of the system and it seems to be much better, now I
wondered about taking the EGR out of the system.

( Wonder what it would be like with no exhaust manifold ? :)) )


 
Nige wrote:
> Jeffrey S Austin wrote:
>
>
>
>>Yes, it will greatly effect the emission test. Your vehicle will fail.
>
>
> Do you work for the ministry of misinformation or what?
>
> --�
>
> Subaru WRX
> Range Rover 4.6 HSE (The Tank!)
> 110 Hi Cap (Ben)
>
> '"Opinions are like arseholes, everyones got one"
>
>
No, I speak as a Colonist. My point of view is from this side of the
Atlantic.
 
Jeffrey S Austin wrote:
> Nige wrote:

>>
>>Do you work for the ministry of misinformation or what?
>>
>
> No, I speak as a Colonist. My point of view is from this side of the
> Atlantic.

So not only are emission laws different in the US, but so is the method
of replacing head gaskets too!


--
EMB
 
On or around Sat, 22 Apr 2006 14:47:49 GMT, "Hirsty's"
<[email protected]> enlightened us thusly:

>Seen and heard quite a few people get rid of these. Two questions; what
>benefit does it have and is it likely to affect the emmissions test at MoT
>time ?
>

Block the pipe with a metal disc (ISTR a 2p is about the right size) in the
joint. Then if you need to you can recommission it.

The idea of this is that the valve can get stuck open or partly open and
result in it recirculating when it shouldn't and other naughty things.

Haven't had any trouble getting ours through the test.
--
Austin Shackles. www.ddol-las.net my opinions are just that
"Would to God that we might spend a single day really well!"
Thomas À Kempis (1380 - 1471) Imitation of Christ, I.xxiii.
 
On or around Sun, 23 Apr 2006 03:00:08 +0100, Jeffrey S Austin
<[email protected]> enlightened us thusly:

>Hirsty's wrote:
>> Seen and heard quite a few people get rid of these. Two questions; what
>> benefit does it have and is it likely to affect the emmissions test at MoT
>> time ?
>>
>> Ta JoH
>>
>An EGR is Exhaust Gas Recirculation. The some of the unburned
>hydrocarbons that exit with the exhaust are routed back through the
>engine to get another try at combustion. I'm not sure if you have
>catalytic converters installed but, the O2 sensors located fore and aft
>of the converters are also part of the emission control system. It's all
>a very carefully balanced act when it comes to the emission control
>system on vehicle now. Get yourself a fault code reader before you start
>removing parts. It'll save you a lot of heartache and grief later.
>
>Yes, it will greatly effect the emission test. Your vehicle will fail.

What tests do they apply on diesels where you are, then?
--
Austin Shackles. www.ddol-las.net my opinions are just that
"Would to God that we might spend a single day really well!"
Thomas À Kempis (1380 - 1471) Imitation of Christ, I.xxiii.
 
Austin Shackles wrote:
> On or around Sun, 23 Apr 2006 03:00:08 +0100, Jeffrey S Austin
> <[email protected]> enlightened us thusly:
>
>
>>Hirsty's wrote:
>>
>>>Seen and heard quite a few people get rid of these. Two questions; what
>>>benefit does it have and is it likely to affect the emmissions test at MoT
>>>time ?
>>>
>>>Ta JoH
>>>
>>
>>An EGR is Exhaust Gas Recirculation. The some of the unburned
>>hydrocarbons that exit with the exhaust are routed back through the
>>engine to get another try at combustion. I'm not sure if you have
>>catalytic converters installed but, the O2 sensors located fore and aft
>>of the converters are also part of the emission control system. It's all
>>a very carefully balanced act when it comes to the emission control
>>system on vehicle now. Get yourself a fault code reader before you start
>>removing parts. It'll save you a lot of heartache and grief later.
>>
>>Yes, it will greatly effect the emission test. Your vehicle will fail.
>
>
> What tests do they apply on diesels where you are, then?

Depends on what part of the country you live in. California, of course,
is strict. But, it's not gotten down to the point of which county within
the state do you live in. This has prompted generally honest people to
register their vehicles with friends in the next county. North Virginia
has tests whereas here in Hampton Roads we do not. But, we're far more
industrialized (shipyards and military bases) than the area around
Washington DC.

Big push for low sulphur diesel now.
 
On or around Mon, 24 Apr 2006 14:04:00 +0000, Jeffrey S Austin
<[email protected]> enlightened us thusly:

>> What tests do they apply on diesels where you are, then?
>
>Depends on what part of the country you live in. California, of course,
>is strict. But, it's not gotten down to the point of which county within
>the state do you live in. This has prompted generally honest people to
>register their vehicles with friends in the next county. North Virginia
>has tests whereas here in Hampton Roads we do not. But, we're far more
>industrialized (shipyards and military bases) than the area around
>Washington DC.
>
>Big push for low sulphur diesel now.

The test here is basically a smoke opacity test. They don't test for any
specific chemicals. Not sure that EGR by itself does a lot anyway...
--
Austin Shackles. www.ddol-las.net my opinions are just that
"Chuck didn't reply, so George swung round in his saddle. He could just
see Chuck's face, a white oval turned toward the sky.
'Look,' whispered Chuck, and George lifted his eyes to heaven.
(There is always a last time for everything.)
Overhead, without any fuss, the stars were going out"
Arthur C. Clarke, "The 9 billion names of God"
 
Jeffrey S Austin wrote:

|| Big push for low sulphur diesel now.

We've had LSD here for ages now - perhaps that's the difference.

(Yes yes, and the low sulphur diesel. Bloody hippies.)

--
Rich
==============================

I don't approve of signatures, so I don't have one.


 
You must log in or register to reply here.

Similar threads

O
300 TDI snapped fan belt - help/advice needed
Replies
12
Views
748
Oliverryan96
O
K
Defender 110 TDI 300 For West Africa Trip
2
Replies
21
Views
3K
shaynecm
S
J
1996 Defender 90 300 tdi - Houston we have lift-off - Oh Dear No We Don't :( 'Lift Out'
Replies
10
Views
2K
v8250
v8250
B
EGR blanking plates
Replies
2
Views
1K
BarriKuda
B
J
300 Tdi engine swap story - and a few questions
Replies
13
Views
3K
doriz
doriz
Back
Top