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DISCO3.CO.UK > Faults & Fixes (D4)

Engine cut out
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GreatWhenTheyWork
 


Member Since: 26 Jun 2023
Location: Kent
Posts: 29

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Lux Auto Barolo BlackDiscovery 4

I only have a icarsoft JLR scanner and a Launch x431.
Just purchased a Gap iid, arriving tomorrow.
So I will see what that tells me.
  
Post #23657713rd Apr 2024 9:14 pm
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GreatWhenTheyWork
 


Member Since: 26 Jun 2023
Location: Kent
Posts: 29

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Lux Auto Barolo BlackDiscovery 4

So scanned with iid, = P062A-92 (92)
P250A-(28) & P0195-00 (28)
  
Post #23658764th Apr 2024 8:03 pm
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PROFSR G
 


Member Since: 06 Mar 2017
Location: Lost
Posts: 4850

Ukraine 2009 Discovery 3 TDV6 Commercial XS Auto Stornoway GreyDiscovery 3

Check the diesel EMS fuses in the BJB, 4, 13, & 17 I think , see if anything shows up. Thumbs Up
 yµ (idµ - eAµ) ψ=mψ

 
 
Post #23658804th Apr 2024 9:02 pm
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GreatWhenTheyWork
 


Member Since: 26 Jun 2023
Location: Kent
Posts: 29

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Lux Auto Barolo BlackDiscovery 4

Hi, all fuses bell out ok. Sad

I’m going to look at earths next, what do you guys think ?
  
Post #23658924th Apr 2024 10:08 pm
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PROFSR G
 


Member Since: 06 Mar 2017
Location: Lost
Posts: 4850

Ukraine 2009 Discovery 3 TDV6 Commercial XS Auto Stornoway GreyDiscovery 3

Even though your posted values for the lpfp look OK to me, that code (P062A-92) is pointing to electrical supply issues with the lpfp. So check again the following fuses and perhaps swap around the fuel pump relay just to rule it out. It could be a red herring but it might not be!

In the BJB fuses 4, 5, 6, 10, 13, 17, & 27. And behind the glove box fuses 19 and 64.

You could also try a lpfp reset with your GAP tool which can often resolve issues. Make sure the battery has at least 12.5v, any lower is not good enough and will prejudice outcomes.

If you can get to the oil level/temp sensor in the sump check the wiring plug connection, but it may be the sensor is goosed. It can cause operational issues but other than checking the connection I'd leave it for now as it's no small job to change the sensor.
 yµ (idµ - eAµ) ψ=mψ

 
 
Post #23659035th Apr 2024 12:14 am
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GreatWhenTheyWork
 


Member Since: 26 Jun 2023
Location: Kent
Posts: 29

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Lux Auto Barolo BlackDiscovery 4

Hi, thanks for the pointers.
I managed to get the engine to fire and run using easy start, but died as soon as the spray stopped.
  
Post #23659735th Apr 2024 6:44 pm
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PROFSR G
 


Member Since: 06 Mar 2017
Location: Lost
Posts: 4850

Ukraine 2009 Discovery 3 TDV6 Commercial XS Auto Stornoway GreyDiscovery 3

OK so the HPFP belt, cam & crank sensors, and more importantly the engine itself is fine.

It's clearly a fuelling problem so start with those fuses and see if there's anything amiss. Then use GAP to do a fuel pump reset and see if anything changes. You can either swap out the fuel pump relay or use a fused bridge to run the pump temporarily if necessary. Thumbs Up
 yµ (idµ - eAµ) ψ=mψ

 
 
Post #23659755th Apr 2024 7:01 pm
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GreatWhenTheyWork
 


Member Since: 26 Jun 2023
Location: Kent
Posts: 29

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Lux Auto Barolo BlackDiscovery 4

So all bjb fuses are ok, swapped the relay. Just need to check glove box fuses and do the pump reset.
  
Post #23659765th Apr 2024 7:29 pm
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GreatWhenTheyWork
 


Member Since: 26 Jun 2023
Location: Kent
Posts: 29

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Lux Auto Barolo BlackDiscovery 4

Okay. So all fuses ok, new Lpfp fitted, new battery fitted, still not firing. Rolling Eyes
  
Post #236705620th Apr 2024 7:17 pm
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PROFSR G
 


Member Since: 06 Mar 2017
Location: Lost
Posts: 4850

Ukraine 2009 Discovery 3 TDV6 Commercial XS Auto Stornoway GreyDiscovery 3

Same fault codes or different?
 yµ (idµ - eAµ) ψ=mψ

 
 
Post #236705720th Apr 2024 7:21 pm
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GreatWhenTheyWork
 


Member Since: 26 Jun 2023
Location: Kent
Posts: 29

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Lux Auto Barolo BlackDiscovery 4

Hi, scanned and no engine codes, just some door lock issues and tv’s need update.
  
Post #236706020th Apr 2024 7:31 pm
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PROFSR G
 


Member Since: 06 Mar 2017
Location: Lost
Posts: 4850

Ukraine 2009 Discovery 3 TDV6 Commercial XS Auto Stornoway GreyDiscovery 3

Can you hear the lpfp running?
 yµ (idµ - eAµ) ψ=mψ

 
 
Post #236706220th Apr 2024 7:53 pm
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GreatWhenTheyWork
 


Member Since: 26 Jun 2023
Location: Kent
Posts: 29

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Lux Auto Barolo BlackDiscovery 4

Hello, yes can hear Lpfp run when ignition pressed.
 https://www.disco3.co.uk/gallery/albums/us...100x33.gif  
Post #236706920th Apr 2024 9:02 pm
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PROFSR G
 


Member Since: 06 Mar 2017
Location: Lost
Posts: 4850

Ukraine 2009 Discovery 3 TDV6 Commercial XS Auto Stornoway GreyDiscovery 3

Bleed it at the schrader until there's a decent constant flow. Then go for a long crank but with a fully charged battery.
 yµ (idµ - eAµ) ψ=mψ

 
 
Post #236707320th Apr 2024 9:54 pm
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GreatWhenTheyWork
 


Member Since: 26 Jun 2023
Location: Kent
Posts: 29

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Lux Auto Barolo BlackDiscovery 4

I’ll give it a bleed of a ltr tomorrow, then give it another go.
 https://www.disco3.co.uk/gallery/albums/us...100x33.gif  
Post #236713021st Apr 2024 8:36 pm
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