Discowex
Joined: 16 Apr 2007
Location: Craggy Island
Posts: 2619
 
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| EGR Blanking & reduced power : connection ? |
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Q . Even if EGR pipes are blanked and exhaust gases are not being recirculated is it possible that an EGR valve can still fail and result in a loss of power ? Don't take life too seriously ..... it's not permanent
Last edited by Discowex on Fri May 16 2008 6:11pm; edited 1 time in total
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 Wed May 14 2008 9:47pm |
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10forcash
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Joined: 09 Jun 2005
Location: In the naughty corner.... eligible for parole 2025
Posts: 13642
 
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Yes, the EGR senses position not flow, if it isn't moving properly then it'll throw a fault  for Freelander 2 Diesel, Discovery 3 / RR Sport TDV6 & RR Sport TDV8, Defender (TD5 & Puma) - available Now!
Vehicle modifications, preparation, training and equipment also available 
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| Wed May 14 2008 9:48pm |
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NoDo$h
Joined: 02 May 2006
Location: Decapod 10
Posts: 5569
 
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Would the solution be to have EGR fault codes reset, remove and clean the EGR valves with brake cleaner or similar (or get new EGR valves under warranty), reinstall, then put the plates in? wd40 has lubrication properties similar to spit. And what's good enough for the girls...... 
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| Wed May 14 2008 9:53pm |
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Discowex
Joined: 16 Apr 2007
Location: Craggy Island
Posts: 2619
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Thanks Ian .Been getting an engine fault for the past few days.Displays fault on the LCD info for a brief few seconds , " Engine System fault , special programs off (?)" . Power and revs drop for a few seconds , message disappears , power remains at about 60- 75 % of normal.Terrain response and Cruise inactive.Fault is cured by switching off engine and restarting.Have had a few hairys where I had to switch off an on whilst overtaking in outer lane.Booked in on Friday.Coincidence it has developed at the same time I did the blanking. Don't take life too seriously ..... it's not permanent
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| Wed May 14 2008 9:54pm |
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Discowex
Joined: 16 Apr 2007
Location: Craggy Island
Posts: 2619
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Sorry should have mentioned , fault occurs at 2500 rpm under heavy acceleration in 4 th or 5 th.Manual.
ND , soaked the inlet pipes when I removed them to fit the plates,looked like a bloody coalmine down there.Warranty finished a good while ago.I thought it wa down a bit on power before I put it in for its service last week but put it down to extra weight of accessories and it needing a service.Asked the tech to check the valves as I told him I was about to blank the EGR system a few days later when I got it back from service.
I thought removing the EGRs was a complicated affair and didn't even consider it when blanking. Don't take life too seriously ..... it's not permanent
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| Wed May 14 2008 10:00pm |
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Hobgoblin
Joined: 15 Nov 2007
Location: Shropshire
Posts: 409
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Discowex wrote:Coincidence it has developed at the same time I did the blanking.
Funnily enough, the problems I am having with mine at the moment, i.e. the transmission faults, started the day after I put the plates in. I'm not as good as I once was........but I'm as good once as I ever was.
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| Wed May 14 2008 10:00pm |
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shiny moose
Joined: 13 Nov 2007
Location: Capital of Mercia
Posts: 930
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Discowex wrote:Have had a few hairys where I had to switch off an on whilst overtaking in outer lane.
I bet that focus's the mind.  Silver TDV6 S with sat nav, PTI and Moosed up a bit
"PROGRESS IS MANS ABILITY TO COMPLICATE SIMPLICITY"
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| Wed May 14 2008 10:04pm |
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Discowex
Joined: 16 Apr 2007
Location: Craggy Island
Posts: 2619
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Hobgoblin wrote:
Funnily enough, the problems I am having with mine at the moment, i.e. the transmission faults, started the day after I put the plates in.
See what comes out on Friday.I double and triple checked everything as I put it back together.
Quote:I bet that focus's the mind.
Yup  ye get some strange looks from the driver of the vehicle your overtaking at the time  Don't take life too seriously ..... it's not permanent
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| Wed May 14 2008 10:09pm |
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NoDo$h
Joined: 02 May 2006
Location: Decapod 10
Posts: 5569
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Hmmm, the idea that they should be blanked at both ends of the EGR assembly gains credence. TFC, any more thoughts on this approach? wd40 has lubrication properties similar to spit. And what's good enough for the girls......
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| Wed May 14 2008 10:09pm |
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10forcash
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Joined: 09 Jun 2005
Location: In the naughty corner.... eligible for parole 2025
Posts: 13642
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Nope... for Freelander 2 Diesel, Discovery 3 / RR Sport TDV6 & RR Sport TDV8, Defender (TD5 & Puma) - available Now!
Vehicle modifications, preparation, training and equipment also available
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| Wed May 14 2008 10:10pm |
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Discowex
Joined: 16 Apr 2007
Location: Craggy Island
Posts: 2619
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10forcash wrote:Yes, the EGR senses position not flow, if it isn't moving properly then it'll throw a fault
Must read up on these things  Don't take life too seriously ..... it's not permanent
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| Wed May 14 2008 10:15pm |
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NoDo$h
Joined: 02 May 2006
Location: Decapod 10
Posts: 5569
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I need to spend a bit of time scratching my head over the EGR thing. I'm starting to think the only long term solution is to hack the software and set it to always leave the valve closed while ignoring that fact, but that is WAY out of my league. Alternative would be to blank both sides of a known good valve and hope it stays good. Not exactly a robust long-term solution 
Ok, suffering from excessive intake of Westons Vintage... wd40 has lubrication properties similar to spit. And what's good enough for the girls......
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| Wed May 14 2008 10:22pm |
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bellautos
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Joined: 02 Feb 2006
Location: NorthYorkshire
Posts: 63
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You can shut the valve in the ecu's software same as in the td5 etc and it wont throw a mil lamp on in most cases. 
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| Wed May 14 2008 10:39pm |
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al cope
Joined: 08 Nov 2005
Location: Oldbury, WM
Posts: 1559
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bit of mixed question Wex. When mine were playing up, they were sticking wide open, resulting in a loss of power due to them dumping all the exhaust crap back in, all the time, so fitting blanking plates would cure this. On 07 models, this would also result in a fault warning light coming on, something 06 and previous years models dont do (although fault codes would still be logged). I waited until I'd had both EGR valves replaced, and then blanked them off.
Al TDV6 S - Tonga with Ebony
(and 19" RRS alloys, satnav & DVD)
Vote for Global Warming - Cambridge on Sea sounds good to me, no more using the M5 to get to the seaside
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| Thu May 15 2008 12:38pm |
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10forcash
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Joined: 09 Jun 2005
Location: In the naughty corner.... eligible for parole 2025
Posts: 13642
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Don't forget that if there is an EGR DTC stored the ECM will drop the engine power whether or not the EGR's are blanked off, just blanking off a jammed EGR will not restore the 'lost' power..... for Freelander 2 Diesel, Discovery 3 / RR Sport TDV6 & RR Sport TDV8, Defender (TD5 & Puma) - available Now!
Vehicle modifications, preparation, training and equipment also available
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| Thu May 15 2008 2:44pm |
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