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Ma Larkin



Member Since: 14 Dec 2024
Location: hampshire
Posts: 11
United Kingdom 2012 Range Rover Westminster TDV8 Barolo Black

First thing we did... changed fuel filter.
Post #706951 15th Dec 2024 3:09pm
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GraemeS



Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2555
Australia 2012 Range Rover Autobiography TDV8 Bournville

Are you seeing cranking RPM on a diagnostic tool that would demonstrate that the CKP sensor is working?
Post #706983 15th Dec 2024 7:39pm
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Mikey



Member Since: 10 Jan 2008
Location: Dundee
Posts: 1784
Scotland 

What volts are at the rail pressure connector?
Post #706994 15th Dec 2024 9:36pm
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Ma Larkin



Member Since: 14 Dec 2024
Location: hampshire
Posts: 11
United Kingdom 2012 Range Rover Westminster TDV8 Barolo Black

GraemeS wrote:
Are you seeing cranking RPM on a diagnostic tool that would demonstrate that the CKP sensor is working?

Yes. Just checked that and all fine. Thank god, as changing the CKP was a nightmare! Didn't want to do that again in a hurry!
Post #707014 16th Dec 2024 9:20am
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Ma Larkin



Member Since: 14 Dec 2024
Location: hampshire
Posts: 11
United Kingdom 2012 Range Rover Westminster TDV8 Barolo Black

Mikey wrote:
What volts are at the rail pressure connector?

0.3...Doesn't change when cranking either
Post #707015 16th Dec 2024 9:21am
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GraemeS



Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2555
Australia 2012 Range Rover Autobiography TDV8 Bournville

I was thinking of confirmation of the 5V supply to the sensor rather than a dead sensor.
Post #707023 16th Dec 2024 10:57am
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Ma Larkin



Member Since: 14 Dec 2024
Location: hampshire
Posts: 11
United Kingdom 2012 Range Rover Westminster TDV8 Barolo Black

Ok. So this making my head hurt trying to work out what is happening here! And following pipes... Again... right back to the beginning but remembered something that I thought was really unusual, but put it out my mind. Why I don't know. I noticed fuel coming out of the return line from the HPFP. And today when going back over everything, took the return line off at the secondary pump, where fuel was coming out, under pressure, from the return line. So basically the fuel flow is being reversed! Return line from the tank is blowing fuel out. Only thing I can think now is the in tank pump has gone wrong...
Post #707052 16th Dec 2024 6:12pm
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GraemeS



Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2555
Australia 2012 Range Rover Autobiography TDV8 Bournville

I would remove the fuel filler cap to rule out a tank breather issue.
Post #707061 16th Dec 2024 7:28pm
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AndyRoo



Member Since: 06 Dec 2023
Location: Gloucester
Posts: 616
Scotland 2012 Range Rover Westminster TDV8 Fuji White

Clutching at straws but have you investigated the possibility that the crash sensor has triggered in some way ?

Airbags haven't gone off I take it, but the fuel cutoff may have initiated or tripped.

A. Fuji White / Jet 2012 4.4 TDV8 Westminster
Post #707082 16th Dec 2024 10:20pm
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toby1



Member Since: 24 Mar 2024
Location: West Berkshire
Posts: 187
England 

Any news Ma? Did you resolve it and if so, what was it please? 2012 Vogue TDV8 in Aintree green over sand
Post #711023 4th Feb 2025 1:52pm
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