Interesting to see if anyone has bought and used one of these?

 

https://www.ebay.co.uk/itm/09-EGR-AGR-Valve-Simulator-Emulator-Plates-for-VW-Audi-Skoda-Seat-1-6-TDI-CR/183869312895?hash=item2acf770f7f:g:A9gAAOSwqPFdHF~4

 

it looks very interesting and a cheap solution if you're diy'ing.

Sounds like a solution if yours is still working as it should (If genuine) Be plug and play but if yours has failed, most likely by the time you have removed yours to blank up, you might just as well fitted a new valve. Of course, they can be a bugger to fit on some cars and pricey from main dealers.

i used this, slightly cheaper

 

https://www.ebay.co.uk/itm/EGR-Valve-Block-Full-Kit-for-1-2-1-6L-TDi-CR-VW-AUDI-SEAT-SKODA-Common-Rail/121471676566

11 hours ago, AMD87 said:

i used this, slightly cheaper

 

https://www.ebay.co.uk/itm/EGR-Valve-Block-Full-Kit-for-1-2-1-6L-TDi-CR-VW-AUDI-SEAT-SKODA-Common-Rail/121471676566

+ remap + DPF delete

Regardless of whether you need to remap it, deleting the EGR while you still have a a DPF is disaster waiting tot happen. 

No problem at all for the DPF.

 

EGR reduces combustion temperature, so is inoperative when the DPF needs to regen.

 

 

agreed, EGR reduces exhaust gas temperaturs before pumping them back in, in fact the EGR is fully shut when regen in progress to increase temperature.

EGR doesn't reduce combustion temperatures, it reduces the oxygen concentration in the combustion chamber down towards stoichiometric levels to reduce the amount of excess oxygen available to oxidise nitrogen to NOx, without affecting the distribution of oxygen in the space which would screw with initiation and propagation of the flame.

....which then reduces EGTs....

either way................removal of any of it is a potential MOT failure, and the way the world is now with emissions etc it will only get more stringent.............or batteries!!! 😁

Edited 12 August, 20205 yr by UrbanPanzer

I was under the impression that removing EGR while you still had the DPF is just gonna block up the filter far quicker as the EGR recirculates the exhaust gases so there aren't as many going to the DPF

no, you might get less NOx but not less soot....it doesn't matter to be honest. Also regarding MOTs, I know several people that have removed all of their emissions devices, their cars smoke like mtractors (none of this Darkside smoke free maps) and MOTs never even shown and advisory. I don't doubt there are people checking, but they know you would go elsewhere.

 

bottom line is that device might be a cheaper solution then.

17 hours ago, Bertie90 said:

....which then reduces EGTs....

No. You're burning the same amount of fuel, which releases the same amount of energy, resulting in the same temperature change during the cycle. If anything, EGT could go up since less energy is getting bound by N-O bonds in NOx, which releases more heat to the exhaust.

Faulty / Failed EGR Valve - The EGR Valve is designed to recirculate exhaust gases back into the engine before they pass through the DPF. If the EGR is not working effectively or blocked the amount of exhaust gases passing through the DPF will be increased potentially speeding up the DPF blocking.

 

Source: https://www.darksidedevelopments.co.uk/diesel-particulate-filter-dpf-fap/

 

You can take it or leave it but personally, I wouldn't be doing an EGR delete when the DPF is still in. It essentially acts as like a filter for the particulate filter in a way

Don't forget that a diesel operates in the opposite sense to a petrol engine, more fuel means more heat in a diesel, less fuel is therefore injected during EGR which has the effect of reducing EGT whilst maintaining cylinder filling, this allows a diesel engine to operate in a lean cruise mode which reduces fuel consumption and therefore also reduces emissions.

On 13/08/2020 at 13:32, ruida_silva said:

Faulty / Failed EGR Valve - The EGR Valve is designed to recirculate exhaust gases back into the engine before they pass through the DPF. If the EGR is not working effectively or blocked the amount of exhaust gases passing through the DPF will be increased potentially speeding up the DPF blocking.

 

Source: https://www.darksidedevelopments.co.uk/diesel-particulate-filter-dpf-fap/

 

You can take it or leave it but personally, I wouldn't be doing an EGR delete when the DPF is still in. It essentially acts as like a filter for the particulate filter in a way

Whether the exhaust gas gets recirculated once or a 100 times, there is only one way out for it, & that's through the DPF.

 

The EGR doesn't act as a filter.

On 13/08/2020 at 12:10, Bertie90 said:

no, you might get less NOx but not less soot....it doesn't matter to be honest. Also regarding MOTs, I know several people that have removed all of their emissions devices, their cars smoke like mtractors (none of this Darkside smoke free maps) and MOTs never even shown and advisory. I don't doubt there are people checking, but they know you would go elsewhere.

 

bottom line is that device might be a cheaper solution then.

 

Just because the MOT man is crap at his job (and thats if he's even there when he logs on)  doesn't make it legal or an excuse to remove it. It's part of the factory emissions control systems and it's a failure if removed............simple.

 

Wonder what else these MOT testers ignore...............corrupt car system rides again!!

 

 

I guess given the ages of most Mk2 Fabia's that anything this costly will write them off in the very near future, so if the MOT system does eventually catch up and is able to detect any of the removal of the factory fit systems the cars will be worthless anyway and due for a change.

On 13/08/2020 at 13:36, sepulchrave said:

Don't forget that a diesel operates in the opposite sense to a petrol engine, more fuel means more heat in a diesel, less fuel is therefore injected during EGR which has the effect of reducing EGT whilst maintaining cylinder filling, this allows a diesel engine to operate in a lean cruise mode which reduces fuel consumption and therefore also reduces emissions.

EGR is not used to reduce fuel consumption, it's used to reduce NOx formation during lean running by reducing the amount of oxygen available to oxidise atmospheric nitrogen at a given level of fuel consumption. Burn the same amount of fuel but leave less oxygen left over to form NOx.

 

Under those conditions EGT will stay the same or go up for the reasons I noted earlier.

10 hours ago, chimaera said:

EGR is not used to reduce fuel consumption, it's used to reduce NOx formation during lean running by reducing the amount of oxygen available to oxidise atmospheric nitrogen at a given level of fuel consumption. Burn the same amount of fuel but leave less oxygen left over to form NOx.

 

Under those conditions EGT will stay the same or go up for the reasons I noted earlier.

 

Ok, it's not.

Lean running is used to reduce fuel consumption which increases NOx emissions, so EGR is introduced to offset this effect.

But EGT goes DOWN during EGR so I'm not sure we can agree on your final paragraph.