I've just blanked my EGR valve off...
Discussion
350Matt said:
Evoluzione said:
A good article here on EGR and why it can be good when done properly:
http://autospeed.com/cms/A_112612/article.html
agreed http://autospeed.com/cms/A_112612/article.html
in a few years when every new car is turbo'd and on GDi they'll all have cooled EGR
its gains are too big to ignore
why are they so obsessed with petrol???? the future is CI !!!
powerstroke said:
Yes maybe those feeble petrol engines
why are they so obsessed with petrol???? the future is CI !!!
I think car Diesel engines will be phased out over the next few years, car makers are finding it harder and harder to meet the ever increasing emission laws. One major manufacturer has already said they won't be producing any more diesel engines after the next round of legislation comes into force within a couple of years.why are they so obsessed with petrol???? the future is CI !!!
In reducing emissions they have been forced to make the engines much less economical and powerful than they could be.
I reduced mine on my Ibiza around 30k miles ago and it hasn't caused me any problems. For the engine the same as mine in the Fabia VRS (1.9TDI PD130 BLT engine code) there was an offical fix using a 9mm gasket to solve hesitation issues at low speed.
It does take a little longer to warm up, but I don't find this to be an issue really. The EML did come on for insufficent flow once around 10k miles after install but I just whipped out the gasket (easier said than done) and gave it a wipe and replaced it and seen nothing since.
Hopefully in spring I'll get the chance to strip down and clean out the EGR and the intake manifold to see how much it has clogged up or not. I also plan to fit a catch can as it seems it is the combination of the oily air from the crank case and the exhaust gases that cause the problems.
It does take a little longer to warm up, but I don't find this to be an issue really. The EML did come on for insufficent flow once around 10k miles after install but I just whipped out the gasket (easier said than done) and gave it a wipe and replaced it and seen nothing since.
Hopefully in spring I'll get the chance to strip down and clean out the EGR and the intake manifold to see how much it has clogged up or not. I also plan to fit a catch can as it seems it is the combination of the oily air from the crank case and the exhaust gases that cause the problems.
hi all
i blanked of the egr on my 2004 mondeo 2.0tdci when i had it.results wernt quite successful for me tho.i had the egr off,was cacked in s
te so had the inlet off also which was not quite so bad but enough.this was all at around 50k so i decided to go down the blanking of route.
within minutes the MIL light was on,which i expected being the euro4 but it was running like a bag of nails and at one point nearly died on me when it went all crazy on me at cruising speed,i had twice as much black smoke.
i removed the blanking gasket and all was well after that,enginge was running normal and smoke had returned to normal but i did have to get the light turned off as this remained on forever untill i finally got sick of seeing it.
this is just my experiance of blanking of a euro4 mondy.
regards
nigel
i blanked of the egr on my 2004 mondeo 2.0tdci when i had it.results wernt quite successful for me tho.i had the egr off,was cacked in s
te so had the inlet off also which was not quite so bad but enough.this was all at around 50k so i decided to go down the blanking of route.within minutes the MIL light was on,which i expected being the euro4 but it was running like a bag of nails and at one point nearly died on me when it went all crazy on me at cruising speed,i had twice as much black smoke.
i removed the blanking gasket and all was well after that,enginge was running normal and smoke had returned to normal but i did have to get the light turned off as this remained on forever untill i finally got sick of seeing it.
this is just my experiance of blanking of a euro4 mondy.
regards
nigel
I have a Ford Transit 190 2.5l 190 lw diesel van, Luton box 10.5ft. I took the vehicle to two different garages to find out why it was so sluggish. IIIIIII MMMEEEEAAAANNNN SSSSSLLLLUUUUUGGGGIIIISSSSHHHHH. Both garages said it was a slow van but nothing wrong with it. I blocked off EGR valve and twisted the nipple of my disele pump.
No difference at all not a jot not a whippets milk forge.
I started to dread taking the van out, I know it sounds wimpish but I started to get depressed.
I sat in the car park with engine running when i thought I would try the most obvious and therefore the least lightly to be the answer. Yes I checked the throttle cable. One and a half twists and the van was trans formed, I mean really trans formed.
Not top end, but pulling power was finally there. Im so happy and revealed. So what I say is If your car van is struggling, some times the most obvious turns out the answer. I was crawling 30 mph up a slope now i power up a 45-50 mph.
No difference at all not a jot not a whippets milk forge.
I started to dread taking the van out, I know it sounds wimpish but I started to get depressed.
I sat in the car park with engine running when i thought I would try the most obvious and therefore the least lightly to be the answer. Yes I checked the throttle cable. One and a half twists and the van was trans formed, I mean really trans formed.
Not top end, but pulling power was finally there. Im so happy and revealed. So what I say is If your car van is struggling, some times the most obvious turns out the answer. I was crawling 30 mph up a slope now i power up a 45-50 mph.
Edited by BBeeaarr on Friday 16th August 19:44
Edited by BBeeaarr on Friday 16th August 19:45
I believe the vacuum hose needs blanking or you will get problems, it is to operate the valve on the egr. You might get a check engine light anyway, (I didn't) but thats just the tree huggers complaining that you've bypassed their emissions junk.
The sluggishness 'might' be down to clogged induction around the egr valve as it's a whopping great restriction in the inlet that lets sooty exhaust gas straight into the throttle. If you fit a straight through replacement pipe it will be nice and clean.
You should get a better running engine due mostly to greater airflow if nothing else. The exhaust tube entering the valve will need blocking too, I used a 2p coin and the same clamp plus a bit of epoxy for good measure
The sluggishness 'might' be down to clogged induction around the egr valve as it's a whopping great restriction in the inlet that lets sooty exhaust gas straight into the throttle. If you fit a straight through replacement pipe it will be nice and clean.
You should get a better running engine due mostly to greater airflow if nothing else. The exhaust tube entering the valve will need blocking too, I used a 2p coin and the same clamp plus a bit of epoxy for good measure
Oilchange said:
Did his to my wifes Rover 75 cdti (BMW 2.0 turbo diesel engine) about 3 years ago
It runs slightly smoother, pulls slightly harder and returns good mpg
Only 'problem' I have encountered was when I plugged it into an engine management scanner and it came back with 'EGR low performance' or some other utter irrelevence. No dash lights or bongs. If there were I would pull the fuse on it...
Blank it and forget, it strangles the engine and its only there for some daft EU emissions rule. If the 75 had a DPF that would be off too. Pointless rubbish imo.
I've got an MG ZT with the same engine, and had an EGR bypass fitted for about 50k miles (3 ish years).It runs slightly smoother, pulls slightly harder and returns good mpg
Only 'problem' I have encountered was when I plugged it into an engine management scanner and it came back with 'EGR low performance' or some other utter irrelevence. No dash lights or bongs. If there were I would pull the fuse on it...
Blank it and forget, it strangles the engine and its only there for some daft EU emissions rule. If the 75 had a DPF that would be off too. Pointless rubbish imo.
It seems to perform slightly better with it in there, MPG isn't really any different.
However having seen the absolute disgusting mess that the EGR's gasses make of the inlet manifold etc - I'm so glad I blanked it off. I dread to think what the layer of crud on every part of the inlet tract was doing to performance...
I've had no problems with the EML but some of the later cars have done.
FWIW my cars engine is quite "old" and I get the impression that the EGR was an afterthought rather than a component designed to sit in the engine when it was conceived.
Old thread! For the sake of closure I'll add that I got rid of the Mondeo in June last year and while most of the car was knackred, there were still no negative repercussions of EGR blankage.
I noticed a slight loss in fuel economy but I think that's down to all the short journeys I was doing- I think the exhaust gasses helped the engine warm up faster. On longer journeys efficiency was about the same.
I noticed a slight loss in fuel economy but I think that's down to all the short journeys I was doing- I think the exhaust gasses helped the engine warm up faster. On longer journeys efficiency was about the same.
Egr only operates at under load conditions so cannot be checked in an mot.so blanking it wont make a difference
If the engine has an air mass meter then if you blank the egr it will see it not working as the air mass should decrease and throw a code up.
if the inlet temps get too high it will back off the egr.
If the engine has an air mass meter then if you blank the egr it will see it not working as the air mass should decrease and throw a code up.
if the inlet temps get too high it will back off the egr.
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