Member Since: 06 Dec 2019
Location: Northern Ireland
Posts: 4
2007 egr valve
Hi folks
I have a 2007 disco 3 se 2.7 tdv6
It lost power briefly a few times before finally losing it permanently and going into limp mode, airbag light and engine management light on
Code reader gives P0489 exhaust gas recirc control - circuit low
Cleared both the airbag light and the 489 code and have driven 20 or so miles since and besides low power for the first 20 seconds it hasn’t thrown the code again
Both egr valves done at 100k , jeep now has 148k on it, I also replaced battery a few weeks back
Question- is it possible that it’s just thrown a few codes or is it likely an egr valve has gone again? If so us it possible to tell which one?
Could anything else cause the fault?
Cheers for any help
Steve
6th Dec 2019 8:54 pm
darrind
Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863
Hi
if you have only cleared fault codes then you have not actually cured the problem, and the actual egr valve problem exists.
I recently had a fire caused by a faulty EGR so be careful to get the problem sorted. On a 2007 Euro4 engine the egr valves can be blanked off and the software patched to stop the system talking to them.
blank them off remove the butterfly and get the software patched, clear the codes and fingers crossed you will be good to go!
BTW do you have a “Jeep” as well Must stop buying shiny toys....
6th Dec 2019 9:07 pm
Stavd3
Member Since: 06 Dec 2019
Location: Northern Ireland
Posts: 4
Unfortunately not.....
I realise clearing the code only knocks the lights out, what I meant was is there any other electrical issue that could throw that code?
Also I was told by the specialist I couldn’t blank this engine as chassis number 7a?
Cheers
6th Dec 2019 9:18 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4699
You can blank it but as darrind says you need the software patch which prevents the ECU calling up the EML!yµ (idµ - eAµ) ψ=mψ
6th Dec 2019 9:45 pm
Stavd3
Member Since: 06 Dec 2019
Location: Northern Ireland
Posts: 4
Ok thanks
I assume the guys I spoke to prob didnt have the software to map it out
6th Dec 2019 9:48 pm
darrind
Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863
The Egrs if faulty can return exhaust gasses back into the engine when under full load. This superheated exhaust gas will melt the plastics it is channeled back into along with engine oil if it melts through to it, quite a combination for a fire if you aren’t lucky!
Normally the EGRs just get stuck and the engine goes into limp mode, this is what happens if you blank a Euro4 engine without a software patch. If you have an GAP IID you can get the patch from BAS - GAP are a forum sponsor https://www.gap-diagnostic.com/2015/06/23/...nking-etc/
I was lucky that what I thought was a coolant leak (I was bunged full of cold and couldn’t smell the plastic) hadn’t caught properly and I could put out the small fire on the throttle body pipe.
Must stop buying shiny toys....
6th Dec 2019 10:52 pm
Stavd3
Member Since: 06 Dec 2019
Location: Northern Ireland
Posts: 4
Thanks, will see if I can get someone here to tackle it
Being quoted January appt dates which is a bit of a problem...
Steve
7th Dec 2019 9:53 am
darrind
Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863
Blanking the EGRs is a fairly easy task. If you have an IID to reset the error you could just order the Patch to stop the error being thrown up again...Must stop buying shiny toys....
8th Dec 2019 8:35 pm
DrRobH
Member Since: 10 Oct 2015
Location: Hampshire
Posts: 924
Am I right in thinking after physically blanking them off then sometime folks don’t get a fault light?
If so, get them blanked and the potential software patch can wait....
I might be wrong so please research etcVisitor from fullfatrr.com
RR Vogue SE 2011 4.4 TDV8
1974 Lightweight
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