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Arcellius



Member Since: 22 Apr 2018
Location: Rogaland
Posts: 8
Norway 
Reduced egine performance (EGR)

I have Intermitting reduced egine performance and engine light comming on.
I get the following error code :
P0405-77 (6Cool Exhaust gas recirculation sensor A - circuit low - Mechanical failure - commanded position is not reachable.

Anyone know the likely culprit? Confused
Post #408100 21st May 2021 4:07 pm
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gasman



Member Since: 02 May 2013
Location: Tyneside
Posts: 922
United Kingdom 2009 Freelander 2 TD4_e GS Manual Zermatt Silver

From what you describe, probably a stuck EGR valve. Carbon build up most likely.
Either remove it and clean, quite a difficult job on your own, or you could try one of the many aerosol cleaners for turbos and egr valves.
Instructions say to spray into turbo air intake but it works much better if you spray it into the orifice the MAP sensor fits into on the throttle body. Remember to put the sensor back in before you rev the engine to clear out the carbon. Thumbs Up Now at the point when I learn something new something old is lost out the other side !
Now retired so it doesn't matter anymore.
Freelander now gone.
Post #408113 21st May 2021 7:37 pm
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Denboy



Member Since: 24 Oct 2019
Location: Merseyside
Posts: 56
United Kingdom 2007 Freelander 2 TD4 S Auto Stornoway Grey

Why not try a egr blanking plate very easy to fit
Post #408122 22nd May 2021 7:11 am
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jules



Member Since: 13 Dec 2007
Location: The Wilds of Warwickshire
Posts: 5562
United Kingdom 2014 Freelander 2 SD4 SE Auto Firenze Red

AFAIK on the later cars, blanking the EGR completely throughs up a fault. Hence the availability of an EGR plate with a hole. Jules
Post #408124 22nd May 2021 7:44 am
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JackGlendinning



Member Since: 03 Jun 2020
Location: Goudhurst
Posts: 5
England 2013 Freelander 2 TD4 S Manual Orkney Grey
Re: Reduced egine performance (EGR)

Arcellius wrote:
I have Intermitting reduced egine performance and engine light comming on.
I get the following error code :
P0405-77 (6Cool Exhaust gas recirculation sensor A - circuit low - Mechanical failure - commanded position is not reachable.

Anyone know the likely culprit? Confused


Hi Arcellius

I have exactly the same issue with the same error codes flagging up. After trying an aerosol cleaner to little effect I have now bought a replacement EGR valve and am halfway through the job of replacing it. Beware that access to the hoses to the EGR and Cooler is extremely restricted and has required a lot of dismantling so far - I will let you know how I get on!

If you end up running it to a garage to have the EGR fitted I would be keen to know what they quote for the job..

Best
Jack
Post #408276 25th May 2021 12:42 pm
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Arcellius



Member Since: 22 Apr 2018
Location: Rogaland
Posts: 8
Norway 

Thanks for the replies, i have started work of getting to the EGR valve.

1. Anyone know the best way to remove the secondary bulkhead? Do you need to work both from the top and below?
2. Do you need to drain the EGR?

Confused
Post #408671 4th Jun 2021 7:25 pm
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Nodge68



Member Since: 15 Jul 2020
Location: Cornwall
Posts: 2172
United Kingdom 

No need to remove the bulkhead at all. All work is done from the top. It takes about an hour to remove the EGR valve assembly. Hyundai Ioniq 5 Ultimate. The family car.
2009 Rimini Red SE TD4. Gone.
2006 Tonga Green i6 HSE. Gone.
Audi A5 convertible, the daily driver.
1972 Hillman Avenger GT, the project.
Post #408675 4th Jun 2021 7:31 pm
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Landy64



Member Since: 15 Sep 2018
Location: South Yorkshire
Posts: 32
United Kingdom 2010 Freelander 2 TD4_e S Manual Santorini Black

Quick Q? How did you manage without removing the secondary bulkhead?
Im curious how you managed it in an hour and a half. Do you have any tips or a brief description of how you did it?
I want to do this but am seeing comments of how difficult it is Big Cry
Thank you
Post #408730 6th Jun 2021 11:17 am
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Arcellius



Member Since: 22 Apr 2018
Location: Rogaland
Posts: 8
Norway 

I don't see how you can manage this without removing the secondary bulkhead.

I have now reached the valve, and using mirror to see the bolts. Looks like its gone be a tight squeeze. Neutral
Post #408780 7th Jun 2021 4:01 pm
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