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Air suspension sanity check
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pippin
 


Member Since: 17 Dec 2017
Location: Horsholm or Birmingham
Posts: 46

Denmark 2005 Discovery 3 TDV6 SE Auto Barolo BlackDiscovery 3
Air suspension sanity check

I’ve had a fault at the front valve block for a while and the symptoms are it’s rising to normal hight but won’t get to high

Checking on the pressure when I’m using iid I’m getting a reading of 1700kpa while pumping then a sneeze and stable at 300kpa

I can see the front right and left valve block
readings flick to 100% then I get the amber error (C1A31 and 32)

I’ve taken the valve block apart and nothing seems wrong in it.

My thought is to look at the valve block off the compressor or the galley because of the crazy high readings or is it just the front block that’s gone caput?  
Post #201335229th Dec 2018 12:48 pm
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MGCarr
 


Member Since: 15 Jul 2014
Location: Lancashire
Posts: 703

United Kingdom 2007 Discovery 3 TDV6 SE Auto Buckingham BlueDiscovery 3

The readings are very similar to mine and as far as I know are correct, the compressor switches off at 1780kpa and then vents the gallery to prevent the compressor from having to start on full load. 1780kpa is approximately 258psi and the rear air suspension needs around 250psi at maximum vehicle weight. 
1997 Defender 90 for the kids and I to have a go at some competitive off road RTV and Tyro trials, daughter picked up her first trophy over the August Bank Holiday.
Previous Land Rover history
1996 P38 4.6 V8 Autobiography
1996 Discovery TDi 300
1972 Range Rover 3.5 V8
LWB Hard Top Series 3
LWB Truck Cab Series 2A
Not been without a Land Rover for over 40 years - I must need therapy!  
Post #201348329th Dec 2018 6:38 pm
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pippin
 


Member Since: 17 Dec 2017
Location: Horsholm or Birmingham
Posts: 46

Denmark 2005 Discovery 3 TDV6 SE Auto Barolo BlackDiscovery 3

Thanks! That makes me think the galley isn’t the right route - looks like a valve block Sad  
Post #201361229th Dec 2018 11:19 pm
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ontheair79
 


Member Since: 03 Mar 2018
Location: Dublin
Posts: 39

Ireland 2005 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

Did you find what is the issue? I have same problem with front valve block electrical error from gap tool. Fitted new valve block and getting same thing. Haven't got time to look for wire damage but plug looks like brand new... 

Last edited by ontheair79 on 12th Jan 2019 12:48 pm. Edited 2 times in total 
Post #201780612th Jan 2019 10:52 am
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pippin
 


Member Since: 17 Dec 2017
Location: Horsholm or Birmingham
Posts: 46

Denmark 2005 Discovery 3 TDV6 SE Auto Barolo BlackDiscovery 3

yep there were 2 issues

1. I had a problem with the wiring loom to the fuel gauge which had been causing issues for a while. This gave a secondary issues to the check brake light, suspension rising, special programs and no fuel gauge

2. After I fixed the above and clean the valve block I realised I hadn’t clipped the the block back in (doh)

It had slow rising error when it first raised but now all good

If you check the live feeds from your sender 1 and 2 on the iid tool see if one of the voltage reading is static - if so that’s the wire you have issue with  
Post #201784412th Jan 2019 12:35 pm
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pippin
 


Member Since: 17 Dec 2017
Location: Horsholm or Birmingham
Posts: 46

Denmark 2005 Discovery 3 TDV6 SE Auto Barolo BlackDiscovery 3

Let me know if you have any questions on it, it shouldn’t take too long, pain is if you have to drop the tank!  
Post #201784712th Jan 2019 12:39 pm
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ontheair79
 


Member Since: 03 Mar 2018
Location: Dublin
Posts: 39

Ireland 2005 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

  
Post #201786012th Jan 2019 1:41 pm
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ontheair79
 


Member Since: 03 Mar 2018
Location: Dublin
Posts: 39

Ireland 2005 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3



No static going up and down little bit. Checked the wire could not see any damages. Looks ok all in protection sleeve.  
Post #201786112th Jan 2019 1:43 pm
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pippin
 


Member Since: 17 Dec 2017
Location: Horsholm or Birmingham
Posts: 46

Denmark 2005 Discovery 3 TDV6 SE Auto Barolo BlackDiscovery 3

Any other errors being thrown up?

Might be the wiring to the valve block instead if there aren’t  
Post #201787012th Jan 2019 2:33 pm
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