Blanking the EGR Valve....?
Discussion
For most cars, a simple plate is sold to blank it off, and you just need to disable any actuators that operate it. In some cases you'll need to do some laptop work so that the car doesn't think there is a fault when you do this.
The benefits are improvements in fuel economy and/or performance, depending which you're driving for!
EGR is designed to limit NOx emissions by reducing the combustion temperatures, which is not usually a good thing for engine efficiency. I don't believe you'll have any issues at all come MOT time, so there's no reason against an EGR delete. I'd certainly get it done!
It won't really affect anything such as responsiveness, turbo spooling, etc - it'll just give you a slight efficiency gain and provide one less thing to go wrong.
The benefits are improvements in fuel economy and/or performance, depending which you're driving for!
EGR is designed to limit NOx emissions by reducing the combustion temperatures, which is not usually a good thing for engine efficiency. I don't believe you'll have any issues at all come MOT time, so there's no reason against an EGR delete. I'd certainly get it done!
It won't really affect anything such as responsiveness, turbo spooling, etc - it'll just give you a slight efficiency gain and provide one less thing to go wrong.
Sorry...Car is Volvo S40 D5 (diesel) Sport 2007. I've been getting mixed answers, some say it's worth doing, and some say it will cause problems in the long run. I'm abit confused whether I should do it or not. Of course, I will get it remapped, dpf removal, and fit Milltek exhaust sometime this year.
I don't want the engine light to come on, as it will be difficult to sell later on the year/s.
I don't want the engine light to come on, as it will be difficult to sell later on the year/s.
TheEnd said:
On a 2007 car, the light will come on, I'm not sure which EU emissions standard it'll be on, but I imagine it would be EU4 which means No EGR = check engine light.
If you are getting it remapped, that part should be able to be cancelled though.
My thoughts exactly, and as for it causing problems in the future.. Is the system you disabled to make the engine systems simpler going to break, or something? If you are getting it remapped, that part should be able to be cancelled though.
i blanked mine off on an old punto diesel as it was listed as a know fault with it jamming that could cause symptoms like i was having, made no difference though, it turned out to be the maf, which i disconnected and then it ran perfectly again, neither of these things seemed to make the blindest bit of difference to how it ran (except for not being like it was when it was broken), i was still just as s
t
i hated that car
t i hated that car
littleredrooster said:
cirian75 said:
It was on the old XUD9 Pug engines
disabling it got rid of the 1500 to 2000 flat spot.
No EGR on the old XUD9, shirley? Certainly not on the ones I had over the years. Later HDi engines might have had one.disabling it got rid of the 1500 to 2000 flat spot.
Edited by Krikkit on Thursday 14th March 11:52
Krikkit said:
littleredrooster said:
cirian75 said:
It was on the old XUD9 Pug engines
disabling it got rid of the 1500 to 2000 flat spot.
No EGR on the old XUD9, shirley? Certainly not on the ones I had over the years. Later HDi engines might have had one.disabling it got rid of the 1500 to 2000 flat spot.
Edited by Krikkit on Thursday 14th March 11:52
I disabled the one on my 320d a few times, performance went up, heavy foot meant mpg went down
Tbh I noticed the loss of MPG more than I did the gain in BHP so I soon connected it back up
I had the thought that BMW probably spent a lot of time making sure that EGR valve runs as efficiently as possible
Tbh I noticed the loss of MPG more than I did the gain in BHP so I soon connected it back up
I had the thought that BMW probably spent a lot of time making sure that EGR valve runs as efficiently as possible
cirian75 said:
StoatInACoat said:
Indeed. Ours did and it's unplugged but no pesky ECU to throw up a fault code.
I pretty sure that gen of pug with that motor could withstand a nukes EMP and still keep working.GroundEffect said:
There are no benefits from blanking your EGR.
EGR is a good thing.
No of course there aren't. EGR is a good thing.
Do you even know what an EGR valve does?http://www.fordwiki.co.uk/index.php/EGR_Valve_and_...
Take a a look at those pictures & tell me how having something that deliberately clogs your inlet manifold & ports with that amount of black s
t is a good thing and that removing it has no benefit whatsoever.Just to add, I personally blanked mine off in a MK3 mondeo that had 80K on the clock, and not only should you notice a gain in MPG but you will also notice an improvement in performance.
As others have mentioned, it may cause your EML to come on but it won't affect anything else.
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