 | Home > Puma (Tdci) > Blanking Puma EGR |
 
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| spudfan Member Since: 10 Sep 2007 Location: Co Donegal Posts: 4663  
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Came across this on the Australian site. Seems they have found a way to blank off the EGR without the MIL coming on.
http://www.aulro.com/afvb/90-110-130-defen...-work.html 1982 88" 2.25 diesel 1992 110 200tdi csw -Zikali 2008 110 2.4 tdci csw-Zulu 2011 110 2.4 tdci csw-Masai |
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21st Aug 2014 2:17pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20376 
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Shall be reading that later.
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21st Aug 2014 2:31pm |
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| milesr3 Member Since: 12 Feb 2013 Location: Suffolk Posts: 873 
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Not the first time this has been mentioned on here: http://www.defender2.net/forum/post348133.html#348133
In that thread, the view from the mappers is that the cleaning cycle should be left alone (which would be disabled by removing the gears) otherwise the valve will get sooted up and allow unregulated exhaust gas flow. Also looking at the pics on the .za site, there doesn't appear to be any sensor in the mechanism; just a feed to the motor. Maybe the ECU is able to measure current flow, otherwise just disconnecting the connector to the EGR would do the same job? If it is measuring current, or at least not an open-circuit, then a simpler (and more easily reversed) 'fix' would be to use a resistor. [Edit] Looking at the .za site again, the OP confirms that there is no position sensor in the EGR. Also he has blanked the EGR "on the intake side rather than the cooler side", so this is going to stop unregulated exhaust gas flow. |
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21st Aug 2014 4:05pm |
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| Naks Member Since: 27 Jan 2009 Location: Stellenbosch, ZA Posts: 2638  
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ZA-spec Defenders do not have a DPF, so no issue for us --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear 2015 Range Rover Sport V8 Supercharged 
Defender Puma Workshop Manual: https://bit.ly/2zZ1en9 Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ |
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22nd Aug 2014 10:09am |
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| milesr3 Member Since: 12 Feb 2013 Location: Suffolk Posts: 873
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Interesting. I keep pondering getting my 2.2 mapped, for greater longevity rather than improved performance. Removing the innards of the DPF and the active regeneration cycle would be top priority.
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22nd Aug 2014 11:42am |
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| Juhulia Member Since: 10 Jul 2013 Location: Dresden Posts: 17 
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Remapping your Landy either in ZA or 'down under' would be worth your while... even on a future holiday trip
Possibly a 'return w/o DPF' journey  |
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23rd Aug 2014 3:58pm |
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| TDCi Guy Member Since: 17 Aug 2014 Location: Yorkshire Posts: 286 
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Surely this would still result in the MIL light coming on as the MAF sensor won't like the readings that it is getting? I can't get into my head how removing the gears and allowing the EGR to spin however it wants is any different to blanking the EGR and leaving it operational? In both cases the EGR can still operate as it wishes just the gases are blocked at different points.
However I might be missing something blatently obvious!  |
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28th Aug 2014 2:15pm |
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| Regard Member Since: 08 Dec 2011 Location: RSA Posts: 251 
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Well....I went on a quick 1000mile journey this weekend to Mozambique and back. Did a lot of 80miles/h highway driving as well as some real slow going/low range, very thick sand roads.
Decided to just unplug the EGR at the grey plug. Guess what? no MIL, no stored faults, nothing nada after 1000 mile round trip. I probably had over 15 stop/start cycles during the weekend and no MIL, no limp mode. So for now I am just going to keep it unplugged. |
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31st Aug 2014 8:15pm |
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| fatman Member Since: 14 Jan 2014 Location: Athens-Greece Posts: 126  
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I completed an egr surgery on situ,much easier than unbolting the whole thing.
Previously I was running the puma with the egr unpluged,i was bored of the yellow check engine light so i tried this method and i have to say one thing.. DO NOT BOTHER,as soon as i cleared the codes with the nanocom,i started the puma 3 times in a row and the 4th time check engine lite again!!! P0404 is my new companion now.. Great expectations.... |
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1st Sep 2014 6:08pm |
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| ralton Member Since: 04 Feb 2010 Location: Durban Posts: 153 
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Hi Regard, is it still ok? Have you noticed any difference? How would one know if the EGR is properly closed when it's unplugged? www.ralton.co.za |
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25th Sep 2014 8:05am |
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| Regard Member Since: 08 Dec 2011 Location: RSA Posts: 251
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Yes, still perfect.
No lights, no fault codes. It has now been over 2000km with it unpluged. Up here on the highveld the EGR is shut closed 90% of the time in anycase but when I was down in Mozambique at sea level there was a definate improvement. I just believe that mine was not faulty and had the propper cleaning cycle. So hoping for a properly closed EGR with it unpluged. |
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25th Sep 2014 9:04am |
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| astoltz Member Since: 08 Mar 2011 Location: South Africa Posts: 31
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Hi Regard
Just something I noticed last night when I decided to test this again after it was mentioned again on the SA forum. When EGR plug is removed some guys mentioned no stored faults can be seen. What I noticed is that when using the UltraGauge to read the fault codes 0 faults is shown. When using the mobile app "Torque Pro" with the Bluetooth dongle also 0 faults is shown. Using my Faultmate I can see the 4 or 5 faults logged wrt the EGR plug that was removed. (BTW there was no faults stored before I started with this test) PS: When I got my Puma in 2011 I also removed the EGR plug to test. I tend to remember the engine check light come on. (Not 100% sure). Somewhere in 2011 I asked the Land Rover Dealer to update the engine ECU software. After this update I never tested to unplug the EGR until last night. I can also confirm that the engine light does not come on. Not sure if Land Rover changes the ECU software on the later versions to perhaps not enable the MIL light wrt EGR related problems Regards Abrie 1997 Land Rover Defender 110 HT 2.8i (BMW M52) 2009 Land Rover Defender 110 HT 2.4 TDCi(Puma) |
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25th Sep 2014 11:06am |
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| dgardel Member Since: 30 Nov 2008 Location: Veneto (Heart & Head) Posts: 3586 
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Remove the gears is the same thing to blank the EGR leaving the connector inserted.....
There are some Defenders that blanking the EGR does not turn on the MIL. that's all!!! Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition
IID Pro MV License |
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25th Sep 2014 5:36pm |
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