GolfGTIforum.co.uk
Model specific boards => Golf mk4 => Golf mk4 TDI => Topic started by: Dizzie on 02 April 2014, 10:55
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Originally I thought removing the EGR valve was a no brainer until I read this:
http://www.tuneruniversity.com/blog/2012/05/dont-block-or-remove-the-egr-valve-its-saving-you-money/
and I have to say everything said in that article makes sense. What's the point in removing the EGR valve at cost when apparently the ECU shuts the valve on full throttle anyway. And when you're not on full right foot there's no point in having more power anyway.
Personally I love the MPG I get from my remapped 150PD and then I enjoy putting 185bhp/320torques down when I need to overtake too :D
Can someone convince me otherwise why the EGR should be removed?
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It recycles dirty exhaust gas back into the manifold. Filling it full of junk. And over time, affecting performance and economy.
For the few quid it saves there isn't any point in it.
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The whole whether to delete the EGR valve question has arisen again over on Facebook along with people asking if it was worth the losing the anti-shudder valve as well as obviously its integrated into the EGR on PD130/50 engines.
What i'm hoping somebody could answer me is, rather than completely deleting the EGR valve and anti-shudder valve would it be possible to disconnect the main vacuum pipe from the EGR, remove and blank off the exhaust intake pipe which attaches to it therefore eradicating the likelihood of it getting caked in crap in the future whilst still retaining the anti-shudder valve located on the top of it with it's own vacuum hose still intact and active?
Would the anti-shudder valve still operate independently?
Failing that I do have a PD130 specific EGR delete pipe in the shed i could utilse but have heard assorted views on how it affects engine shut off due to the lack of anti-shudder which eventually has an increased detrimental effect on the engine mounts.
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the way ive deleted my egr on mine is: boutght 2 pieces of metal that fit nicely over the egr part of the manifold and the bottom of the egr unit. turned the egr right down, maybe even off using vagcom and thsts it! ive kept all thr anti shudder valve and didnt have to sod about atall with any vacum lines. and the best thibg is it cost me about £4 for the plates
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What are the 2 pieces of metal doing exactly, do you mean for the blanking the exhaust flanges?
So you still have a fully operational ASV?
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I bought a PD130 last week which came with a full s/s exhaust and full EGR delete as in a s/s pipe. I am very new to these engines so reading the above has proved of interest to me. I took the inlet manifold off and it is as clean as a whistle in there......Only thing my car keeps doing is blowing the original VW hose that connects to the EGR delete pipe off?
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godzilla, they always blow the hoses off its coz of the pantsy bayonet and clip fittings they use
thai, yes its the flange that the pipe between the manifold and egr valve bolts to. yes the asv is still fully functional. im going to be honest i only did it this way as it was about £4 for the way i did mine or £50odd squid for an allard or similar one. yes im a cheapskate lol
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Likewise mate and refuse to spend money on pointless modifications. As mentioned I already have a delete pipe kit that I originally bought for my mk3 TDI and never fitted so the cost isnt an issue in this instance, its just that the more I read on the topic the more undecided I become plus I like things to work correctly.
I think il just have to do some trials with the EGR fitted and disconnected, with and without the ASV connected then with the delete pipe kit and make my own mind up from there.
More importantly i need to empty the oil from my intercooler that has recently decided to decorate my parking spot! :undecided:
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ahh lovley, the oil breather system might be a blit blocked or something. to be honest all thr asv does that i can see is helps the engine shut off with less of a jolt
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From what i understand the ASV not only reduces shutdown vibration but also reduces the risk of diesel runaway and certain self destruction which is obviously a necessity in my eyes.
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From what i understand the ASV not only reduces shutdown vibration but also reduces the risk of diesel runaway and certain self destruction which is obviously a necessity in my eyes.
Indeed it does as thats what happened to my old 130 when the turbo let go......
On my A3 I have deleted the EGR but left the ASV in place
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Was your PD130 running a EGR delete pipe when it gave up the ghost?
How have you done it on the A3 exactly, the way i've mentioned by leaving the EGR fitted albeit disabled?
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Was your PD130 running a EGR delete pipe when it gave up the ghost?
How have you done it on the A3 exactly, the way i've mentioned by leaving the EGR fitted albeit disabled?
Yes it was. Managed to shatter the housing on the original EGR valve :lipsrsealed:
Different design on the later engines so the EGR and ASV are separate units
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Worth noting it will put EML and Emissions workshop lights on dash unless mapped out.
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Worth noting it will put EML and Emissions workshop lights on dash unless mapped out.
Post 02 cars yes
My 51 plate was ok
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Thais is 53. :)
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After much searching and reading I've made the executive decision NOT to delete the EGR at this time or the foreseeable future. I simply don't see enough gains from doing so that override extra safeguarding they provide to the engine.
Yes, I agree I'd likely have a cleaner intake system but If I'm honest I'd never let it get bad in the first place and not maintaining this particular part of the engine is sheer laziness IMO.
With this said I've literally just sold my EGR delete kit anyway... :wink:
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Does anyone know how to turn the EGR function down with Vagcom?
Seems to be a better way to reduce the carbon than having to spend some cash on the kit and map the sensors out.