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Conflicting advice on euro 3 or euro 4

 
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Old 06-26-2017, 02:08 PM
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Default Conflicting advice on euro 3 or euro 4

My 2005 2.2d se has an electronic turbo actuator, and also has a vacuum piped egr valve with 3 wire height sensor.


I have been unable to define if my engine is euro 3 or euro 4.


I have had conflicting information on this, and cannot get a clear answer.


My understanding is the euro 3 can be egr blanked without eml problems, whilst euro 4 cannot.


Whilst euro 4 always has electronic turbo actuator, is it still euro 4 with vacuum egr with height sensor ?


Thanks,
Paul.
 
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Old 06-26-2017, 11:18 PM
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Old 06-27-2017, 04:47 PM
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Hi Dell,
Thanks for the info.
So my 2005 2.2d with vacuum egr (with height sensor), is Euro 4.




Other info implies that the motor driven egr makes it euro 4.
A parts supplier shows the motor egr starts from a vin number just a bit higher than mine.


Thanks,
Paul.
 

Last edited by Man on the hill; 06-27-2017 at 04:52 PM.
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Old 06-29-2017, 12:32 PM
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Originally Posted by Man on the hill View Post
My 2005 2.2d se has an electronic turbo actuator, and also has a vacuum piped egr valve with 3 wire height sensor.


I have been unable to define if my engine is euro 3 or euro 4.


I have had conflicting information on this, and cannot get a clear answer.


My understanding is the euro 3 can be egr blanked without eml problems, whilst euro 4 cannot.


Whilst euro 4 always has electronic turbo actuator, is it still euro 4 with vacuum egr with height sensor ?


Thanks,
Paul.
The main thing is it's illegal to do things such as blank or disable an EGR.
 
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Old 06-29-2017, 01:23 PM
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Hi JagV8,
Do you have a link where I can see why it is illegal to blank the egr here in the UK?


Thanks,
Paul.
 
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Old 06-30-2017, 05:35 PM
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Under EU and UK laws it is illegal to tamper with/defeat/etc any emissions-related stuff as you can read in the various laws. There is also advice on various gov.uk sites. google is your friend here. By way of example, but there are many more, Regulation 61A of the Road Vehicles (Construction and Use) Regulations 1986.

Note it is a criminal matter, not civil.

Potentially invalidates your insurance - especially if you fail to tell your insurer of any mod like that!
 

Last edited by JagV8; 06-30-2017 at 05:40 PM.
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Old 06-30-2017, 05:58 PM
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That's interesting, I will look in to that.


This evening I have just replaced engine oil and filter, and air filter, also replaced a slow leak on the thermostat housing seal.


Whilst doing this work, upon removing the engine cover i have just noticed that 2 wires of the egr lift sensor are cut through, this is where the wiring loom splits on the cam cover !
So someone has done some work here previously, i have done approx 100+ miles since owning it, and the eml has stayed off, looks like the ecu could have been re programmed to ignore the egr ?


When i bought the car a few weeks ago, i did notice slight increase in diesel knock when the car was cruising on part throttle, this seems to be classic trait of no egr circulation.


I have since filled the tank and added a bottle of Archoil ar6400d max treatment, to decoke the engine/turbo.
Now I have noticed that the part throttle knock has stopped, i assume this is due to the cetane boost that the additive has, as the full decoke will take longer.


The engine does run well, with no flat spots of hesitation.


Paul.
 

Last edited by Man on the hill; 06-30-2017 at 06:01 PM.
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Old 07-01-2017, 01:50 AM
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Bit of a horror story, as the UK's dire air quality means sooner or later real testing of diesel cars emissions looks inevitable.
 
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Old 12-29-2018, 05:34 AM
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Sorry, this posting came to the wrong thread.
 

Last edited by XJR-99; 12-29-2018 at 05:48 AM.
 

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