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EGR Problem
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Askahain
 


Member Since: 10 Dec 2014
Location: Saulheim
Posts: 4

Germany 2008 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3
EGR Problem

Hello,

i'm new to this forum an have a question about an egr problem.

I've got an P0405 ODB Error Code (Exhaust Gas Recirculation Sensor "A" Circut Low).

I have read many pages with hints, guides ,... about blanking, cleaning an so on.

After this i have cleaned both egr valves the pipes to the valves an the small pipes that collect the exhaust air. I cleaned the MAP sensor, too.

After this i made a short test an drive around the block. The Error was gone.

On the next morning i start the car and it show me two errors (P0405 again, and P140A).

Can somebody help me with this problem what is the cause of the errors and where is the EGR sensor A located ?

With kind regards

Askahain
  
Post #138689710th Dec 2014 3:50 pm
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6299

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

You need to fill in your profile on info of your car, we can then answer your question on the egr's. We then know what we are dealing with.

Flack Thumbs Up
  
Post #138689910th Dec 2014 3:56 pm
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Askahain
 


Member Since: 10 Dec 2014
Location: Saulheim
Posts: 4

Germany 2008 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Ok , i have forgotten the color. Now it should be complet
  
Post #138691210th Dec 2014 4:25 pm
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6299

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

As yours is a 2008MY you can't just blank the valves off like on earlier models, you have 2/3 options..

Option 1 is to replace the faulty valve with a new one ..

Option 2 just unplug the valve or valves that have failed and plug in a known good working actuator off a new/used valve and strap it to the old valve, fix for now but not good if the MOT rules change and the tester checks the valves.

Option 3 blank and fit emulators and forget about the valves, only problem is as your abroad you would also need a remap interface from Bell Auto's so you could apply the software update needed to configure the emulators to your car.

Option 2 is the cheapest one for you.

Flack Thumbs Up
  
Post #138697310th Dec 2014 5:54 pm
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Askahain
 


Member Since: 10 Dec 2014
Location: Saulheim
Posts: 4

Germany 2008 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Hello,

thank you for the tips.

I think it can't be Option 1. I have removed both valves and cleaned them. Both valves don't stuck.

Maybe an Option 2 can be the problem if a actuator is damaged.

Is there a hint in the error codes which valves shows the error? Its not so easy to remove the valves.

Option3 is no option for me Smile
  
Post #138724911th Dec 2014 12:17 am
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Askahain
 


Member Since: 10 Dec 2014
Location: Saulheim
Posts: 4

Germany 2008 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Ok, error P140A fixed.


Left Side:
The claws of the actuator aren't fit to the valve at the reassembly of the valve. Sad
Removed the valve and the actuator again and fit it correct to the valve. After the assembly of all the error is gone. Very Happy

But the initial P0405 stays.

I will try to remove the actuator on the right side an check if he moves if i apply +12 -12V.

I have cleaned the valve too so it looks the same as the valve on the left side.

Picture from the left side valve:
Click image to enlarge


EDIT:

I think i have found the problem on the right side. I took a closer look to the actuator part of the valve an see that a ball bearing is missing (dont know where it is gone) Big Cry . I found one bearing ball in the dirt on the actuator. Ordered a new valve and hope that this will solve the problem.


Click image to enlarge
  
Post #138746011th Dec 2014 1:54 pm
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