1.9 dci egr blank

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robbie1003
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1.9 dci egr blank

Postby robbie1003 » Tue May 31, 2016 9:42 pm

anybody tried one? seems to be a couple of blanks on the market, one that goes between the valve and manifold and another that goes in return pipe, which is best or do both? is there problems with engine warning light?

AlexB
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Re: 1.9 dci egr blank

Postby AlexB » Tue May 31, 2016 10:18 pm

An option is to remove the valve, hang it on a wire near the engine, and blank the valve seat with something cylindrical. The engine will be fine, slightly better mileage, less carbon particulates causing cancer, more NOx causing irritation.

I tried, but then returned to the original setup for MOT, then replaced the car with turbo petrol.
AlexB
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taffyhl
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Re: 1.9 dci egr blank

Postby taffyhl » Wed Jun 01, 2016 9:21 am

Another option is to split the EGR valve - there's an electrical part outside the engine and the mechanical part which sits inside. Refit the mechanical part and then turn roughly 180 degrees which effectively blanks it off. Bolt the electrical section on as normal as reconnect the electric block. It's not exactly 180 degrees as you need a little fiddling to get all three bolts back in.

I've done this and no problems so far. In fact it's improved the rough idle I get in town sometimes as well as reducing the flat spot I had between 1200 and 1600 revs. Long term I'm not sure but my car has 130k so I was prepared to take a chance. Whether you want to is up to you!!

I believe you shouldn't get a warning light on doing this. Can't say with mine as it already have a light on for a faulty EGR (P0487) which cleaning and replacement with a spare EGR didn't cure. As mentioned car is near end of life so I can live with a light on.

robbie1003
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Re: 1.9 dci egr blank

Postby robbie1003 » Wed Jun 01, 2016 10:56 am

Thanks for replys. Not keen on just having egr hanging, better fixing a plate and forgetting it for mot. Any ideas to why there are two blanks available, the larger one lookslike it goes on before the electrical part of egr, notsure if the mechanical part stays in. Thinking remove egr for a clean and just blank off return pipe similar to what's on my x type diesel.egr operates as normal but doesn't get the mucky gas.

triumph2.5man
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Re: 1.9 dci egr blank

Postby triumph2.5man » Wed Jun 01, 2016 7:32 pm

I did what Taffy described and it worked well. it does not upset the computer although removing the wires from the EGR valve logs a stored fault so don't do that!

robbie1003
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Re: 1.9 dci egr blank

Postby robbie1003 » Thu Jun 02, 2016 11:41 am

Sounds worth a try, once I get the thing unstuck from in manifold.

taffyhl
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Re: 1.9 dci egr blank

Postby taffyhl » Thu Jun 02, 2016 12:19 pm

Bit of pain to get the valve out if not been cleaned for a while. Big screwdriver and gentle taps clockwise, anti-clockwise until you can get something between the engine and valve. Screwdriver is risky; can scratch the surface and possibly damage the gasket.

taffyhl
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Re: 1.9 dci egr blank

Postby taffyhl » Fri Jun 03, 2016 8:30 am

This is where I found the idea originally:


https://hubpages.com/hub/How-to-remo...l ... diesel-van

AlexB
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Re: 1.9 dci egr blank

Postby AlexB » Fri Jun 03, 2016 9:12 am

I tried it before - the OBD fault was triggered. It seems that the mechanical part limits the travel of the plunger, and the margins of travel are monitored electronically. I didn't go in depth though, just was playing not long before selling the car.




taffyhl wrote:Another option is to split the EGR valve - there's an electrical part outside the engine and the mechanical part which sits inside. Refit the mechanical part and then turn roughly 180 degrees which effectively blanks it off. Bolt the electrical section on as normal as reconnect the electric block. It's not exactly 180 degrees as you need a little fiddling to get all three bolts back in.

I've done this and no problems so far. In fact it's improved the rough idle I get in town sometimes as well as reducing the flat spot I had between 1200 and 1600 revs. Long term I'm not sure but my car has 130k so I was prepared to take a chance. Whether you want to is up to you!!

I believe you shouldn't get a warning light on doing this. Can't say with mine as it already have a light on for a faulty EGR (P0487) which cleaning and replacement with a spare EGR didn't cure. As mentioned car is near end of life so I can live with a light on.
Last edited by AlexB on Fri Jun 24, 2016 10:46 pm, edited 1 time in total.
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robbie1003
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Re: 1.9 dci egr blank

Postby robbie1003 » Mon Jun 13, 2016 10:15 am

Manged to ease the valve out of the inlet and clean what I could get at, to be fair it wasn't too bad inthere,remember doing my frontera valve and inlet and it was nearly closed up. Turned valve 180ish and all is well.

taffyhl
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Re: 1.9 dci egr blank

Postby taffyhl » Mon Jun 13, 2016 10:40 am

Good stuff! Did it trigger an ODB warning light? Mine had the light on with an EGR valve fault before I turned it 180 so I don't know if it would have triggered one.

Just put my EGR back to normal as I have a MOT Fri and not sure if they would be happy with it.

robbie1003
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Re: 1.9 dci egr blank

Postby robbie1003 » Mon Jun 13, 2016 4:53 pm

no, iv had no warning light.

taffyhl
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Re: 1.9 dci egr blank

Postby taffyhl » Thu Jul 07, 2016 12:19 pm

Quick update. Passed the MOT with defective EGR valve off and EML light still on so.... EGR now blanked (180 turn) and car running better than ever ;-) plus averaging around 56mpg on my mainly motorway commute.

snapdragon
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Re: 1.9 dci egr blank

Postby snapdragon » Mon Jul 11, 2016 10:58 am

Hello, do you have any increase in diesel noise? I read EGR reduces diesel 'bark'.

taffyhl
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Joined: Tue Feb 12, 2013 2:01 pm
Currently Drives:: 2004 Megane II 1.9 dynaique

Re: 1.9 dci egr blank

Postby taffyhl » Tue Jul 12, 2016 8:11 am

It's quite a noisy engine and my first diesel so can't really say.

I've also ditched the pointless engine cover which may increase noise at speed but used to rattle at idle and be just as annoying.


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