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1.8 Tdci Euro 4 Egr Blanking Plate Good Or Bad?

1.8 tdci egr blanking plate black smoke

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#1 Timty

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Posted 03 February 2013 - 09:31 AM

Hi,

I've fitted a blanking plate (not really 'blanking' as it is the one with a 10mm hole in it) to my 2009 Focus 1.8 TDCI.

I can't say I've noticed any effects - good or bad but I'm a bit nervous about it. Am I in the long term doing more bad than good for the engine?

What has been your experience? Have you fitted this plate and if so have there been any bad effects and if so what were they and after what mileage?

I get nervous when I read this: http://www.wynnoil.c...atured-egr3.htm

Is there any good guide, with photos, on cleaning the manifold and egr on this car. The plate is fitted at the point where the pipe from the cooler attaches to the inlet manifold/EGR system (see attached photo). Would there be any merit in spraying EGR cleaner in here and letting it have a good soak occassionally? Does this get at the part of the valve that sticks?



Regards,

Tim

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  • EGRsm.jpg


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#2 jynxy

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Posted 17 September 2013 - 08:18 AM

I would also be interested in knowing if this is the correct location and a guide on how to remove the egr, inlet manifold etc so i can clean mine out.



#3 FOCA

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Posted 18 September 2013 - 04:46 PM

The blanking plates with a hole or holes in them are a waste of time (defeats the purpose of the plate) because they still allow exhaust gasses through to contaminate and choke up the cars inlet (including the manifold, inlet valves, EGR valve housing etc ) and a blate that is not solid requires a working EGR (exhaust gas recirculation) to work

 

A solid (no holes to let gasses through) blanking plate completely stops exhaust gases from entering the inlet, this is replaced with clean air, so engine runs better (turbo spools quicker with less "flat spots"/ hesitation) engine responds better to the throttle

 

A solid blankig plate "fixes" a faulty EGR system or leaking EGR valve - no need to buy a new valve - save ££££s

 

After a solid plate is fitted, the carbon will stop building up in the inlet, if it is also cleaned out (by taking the inlet manifold off) - it will stay clean (from carbon from the exhaust)

 

If the EML (engine management light) comes on with a solid plate, it can be reset with a code reader

 

My advice is to fit a solid EGR blanking plate (preferably stainless steel - mild steel rusts, aluminium can melt) or dont bother -

 

Plates with a hole are a waste of time

 

Spraying in  EGR cleaner is a bad idea - if it works its liable to fill your engine up with muck - take the inlet manifold off and fill a bucket with muck instead     



#4 georgen

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Posted 18 September 2013 - 05:42 PM

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ x2 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^



#5 Timty

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Posted 20 September 2013 - 11:07 PM

FOCA - what happens when the eml light is cleared, will it come back on regularly after?

#6 FOCA

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Posted 21 September 2013 - 06:03 AM

FOCA - what happens when the eml light is cleared, will it come back on regularly after?

It can do, with Euro4 Mk3 Mondeo TDCIs being bad for the EML coming on fairly quickly after the codes are cleared, Many Euro4 Focus owners however that have fitted solid EGR blanking plates have reported no problems/ the EML not coming on at all

 

With an EGR plate only costing about a fiver its worth trying to see what happens

 

Im not surprised you have not noticed any difference with the "holed" plate (because it does almost nothing)- with a solid plate you should notice a difference, eg- better pick up, less flat, spots,  better pull from low revs etc  

 

There are pros and cons to where exactly where to place the plate, or you can fit 2 plates - one at each end - or even remove components like pipes etc-  the main thing though is stopping the exhaust gasses/ carbon from getting into the inlet  



#7 jynxy

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Posted 21 September 2013 - 03:54 PM

I have done mine, but no diffence, still dont get much pull from the turbo till atleast 1800 revs if not more, by that point im practicly chaning gear so a waste of time :(

 

is there something else wrong ?



#8 FOCA

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Posted 21 September 2013 - 05:49 PM

I have done mine, but no diffence, still dont get much pull from the turbo till atleast 1800 revs if not more, by that point im practicly chaning gear so a waste of time :(

 

is there something else wrong ?

You cannot expect miracles from a £5 blanking plate - it will reduce flat spots and pickup from low revs, as well as prevent the inlet from getting contaminated with carbon from the exhaust, as well as "fixing" a leaking EGR valve or prevent future problems with the EGR system

 

So a solid EGR blanking plate is not "a waste of time"

 

An ECU reset may de required as well as  cleaning out the carbon/ muck from the inlet manifold to get the full benifit

 

You cannot expect massive power/ torque improvement from just a plate

 

To seriously increase your power/ torque - you will need a tuning box/ remap, and other modifications such as exhaust and more

 

 

In the meantime if you keep your engine "in the power" (rev the engine untill it reaches peak power )   / rev your car to about 3k- 3.5k it will accelerate much faster -  as it produces less than 50Hp at 1800rpm    (even peak torque is above 2500)

 - the car should make "good" progress if you rev it to 3k, then change up, if you change earlier, you will "loose power" - this is called "short-shifting" and although peak power is at 4100, it "levels out" above 3.5 so the "usable band" is 2 to-3.5k (on the stock car - the Superchips remapped one it is higher-  you would rev that to 4k for maximum acceleration) , (if you rev the engine past peak power you are "loosing power" as well, it takes skill/ timing to get it "spot on")

 

 here are the power/ torque curves for your car - including the stock car (courtesy of Superchips) -

 

http://www.superchip...18TDCi115ps.pdf

 

 

Turbo- diesels often have a narrow power band - they are "all like that"  



#9 Timty

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Posted 21 September 2013 - 09:10 PM

Can anyone explain to me when does the EGR valve 'do its thing'. Does it go from fully closed to fully open or by gradual steps in between and what is the 'event' that causes this to happen. What detects combustion temperatures to be high enough to deploy the valve? I've just done 300 miles of motorway driving with my Focus 1.8tdci today and with 50 miles to the end of my journey i noticed (as did my passengers) 2 distinct 'misses'. These were 25 miles and just for an instant but - noticealbe.It's as if the engine was shut off for a milli-second and back on again. No codes, no alarms. Is this the EGR valve opening? Is this normal, does anyone else experience this on the 1.8 tdci?? I have no complaints regarding performance or economy



#10 FOCA

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Posted 23 September 2013 - 05:57 AM

Can anyone explain to me when does the EGR valve 'do its thing'. Does it go from fully closed to fully open or by gradual steps in between and what is the 'event' that causes this to happen. What detects combustion temperatures to be high enough to deploy the valve? I've just done 300 miles of motorway driving with my Focus 1.8tdci today and with 50 miles to the end of my journey i noticed (as did my passengers) 2 distinct 'misses'. These were 25 miles and just for an instant but - noticealbe.It's as if the engine was shut off for a milli-second and back on again. No codes, no alarms. Is this the EGR valve opening? Is this normal, does anyone else experience this on the 1.8 tdci?? I have no complaints regarding performance or economy

Different designs of EGR valves work in slightly different ways depending on the engine, some are simply "off" or "on" (eg a solenoid) others are motor driven (variable opening) sometimes with a position sensor that is fed back to the ECU

 

Combustion produces heat - combustion requires oxegen - and if the oxegen is replaced with carbon monoxide combustion cannot happen, so less heat produced/ but less power - originally the EGR valve systems were used on petrol engined cars and the valve opened on the overrun/ lift off and shut when the thottle opened again

 

Your "misses" is probably the EGR valve opening - it is often descibed as "flat spots" or "hesitation" - it must be bad if your passengers noticed it - i suggest you try a solid EGR blanking plate - you might find this dissapears, and engine runs smoother, with no "flat spots", better pickup, throttle response etc  

 

I am very happy for you that you have no complaints about performance or economy, many other motorists do, the forum is full of posts asking/ discussing ways of increasing their cars performance or economy, and manufacturers spend a lot of money on the same as well

 

If you run a diesel with an EGR valve/ system that is not completely banked or disabled/ deleted, you will contaminate your ilet with carbon from the exhaust, which will build up over time, eventually choking the inlet and reducing performance/ economy   



#11 Timty

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Posted 23 September 2013 - 06:41 AM

Thanks FOCA for the comprehensive answer, I'll give it a go and let you know.



#12 firetrappp

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Posted 05 November 2013 - 06:32 PM

i have an 2006 1.8tdci ford focus , egr valve was the problem , i have replaced it with secondhand one , after couple days problems started again like black smoke , car goes in to a limp mode , loss of power etc,

then i took it to the ford for diagnostic , code came up p0489 which they said egr valve , or wiring ,

electrician checked the wiring , there is no problem , so thinking now second egr was faulty

with 1.8 engines i have been told that its part of the manifold

i am wondering, would blanking plate sort my problem out

many thanks



#13 karlos the jackal

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Posted 05 November 2013 - 09:09 PM

I blanked my EGR earlier this year, straight away I found the power delivery to be smoother and I also get 1-2 more mpg. 4000 miles later it's still running well and I've not had the EML come on. Best £4 I've spent.
 

 



#14 Blurredfocus

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Posted 05 November 2013 - 09:38 PM

Could this be my problem on the 1.6 tdci ? I've bought the blanking plate just not had time to fit it. I've had it deleted from the Ecu but I've be told with the remap it could possibly still be opening slightly from the back pressure. It's causing an intermittent flat spot around 3000rpm its annoying and definitely not what you want while overtaking :-/

#15 FOCA

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Posted 07 November 2013 - 07:47 AM

i have an 2006 1.8tdci ford focus , egr valve was the problem , i have replaced it with secondhand one , after couple days problems started again like black smoke , car goes in to a limp mode , loss of power etc,

then i took it to the ford for diagnostic , code came up p0489 which they said egr valve , or wiring ,

electrician checked the wiring , there is no problem , so thinking now second egr was faulty

with 1.8 engines i have been told that its part of the manifold

i am wondering, would blanking plate sort my problem out

many thanks

Yes, a solid blanking plate can "fix" a faulty/ leaking EGR valve/system

 

the solid plate effectively disables the EGR system - so if it is not working right, (sticking, leaky jammed etc) the solid plate blocks this off, "fixing" the problem - this does not happen with plates with holes in them, plates with holes to let the gasses through need the EGR valve/ system to be working

 

A solid plate made of stainless steel, and decently thick, (aluminium can melt, mild steel rusts, if its too thin and its near the exhaust it can burn through) is the best      



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