Freelander td4 fuel pressure problem!!!

Hi all thanks in advance for any help received
Recently had a problem with my freelander 1 td4.....
Water pump broke so replaced the pump and thermostat after land rover had been sitting 3 months started her up and was little rough on tick over but cleared after a few seconds took her for a drive and after 20 miles the engine cut out
And Mil light come on and wouldn't start had it plugged in came up with.
Camshaft sensor malfunction
Pre-fuel rail pressure malfunction
Pressure regular valve malfunction
Glow plug relay failure

I have changed the camshaft sensor
And fuel filter with.no joy!!
I can hear the back pump and pump under the bonnet with the ignition on under bonnet pump was leaking a tiny.bit before I fitted water pump and tried to seal it before the test drive
I've also had a land rover specialist
Come out and take some readings
They are as follows........
Coolant temperature: 10.95
Inlet air temperature: 15.15
Airflow mg/stroke: 500.00
Manifold pressure: 100.70
Low pressure supply: 365:30
High pressure rail: 0.00
Fuel pressure regulator: 0.00
Engine speed: 0.00
Petal 1 demand: 0.74

It does start with easy start but cuts out soon as you don't spray

The land rover specialist did turn the engine over with the readings on screen can't remember what most of them said but the
High.pressure rail was 6000?? I think
Cheers Daniel
Need to get the hippo back on the road lol

Here's a screenshot of the readings

Live data from a stationary engine is useless as all values will be static.

Engine cutting out could be the high pressure fuel pump sensor or its wiring/ corrosion on the connector.

It won't be the cam sensor as that's only used at startup. If it fails while the engine is running, the engine keeps running. The crank sensor failing will stop the engine. However they are generally robust and long lived.
My guess is the rail sensor or its wiring.

Also 6000 what? It sounds wrong for the rail pressure.
The rail pressure should be between 25,000Kpa to 125,000Kpa depending on engine speed and throttle position.

Nodge68 said:

Live data from a stationary engine is useless as all values will be static.

Engine cutting out could be the high pressure fuel pump sensor or its wiring/ corrosion on the connector.

It won't be the cam sensor as that's only used at startup. If it fails while the engine is running, the engine keeps running. The crank sensor failing will stop the engine. However they are generally robust and long lived.
My guess is the rail sensor or its wiring.

Also 6000 what? It sounds wrong for the rail pressure.
The rail pressure should be between 25,000Kpa to 125,000Kpa depending on engine speed and throttle position.

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6000 kpa when cranking engine over
I have checked the wiring to fuel sensor and seems to have the one that goes direct to ecu box?? And the engine doesn't start at all with the key only while easy start is being sprayed into air intake I cracked the fuel rail open and only dripping out no pressure there would the fuel sensor failing make the engine cut out dead when it running then? Cheers again Daniel

Haribo2k7 said:

6000 kpa when cranking engine over
I have checked the wiring to fuel sensor and seems to have the one that goes direct to ecu box?? And the engine doesn't start at all with the key only while easy start is being sprayed into air intake I cracked the fuel rail open and only dripping out no pressure there would the fuel sensor failing make the engine cut out dead when it running then? Cheers again Daniel

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Also soon as the easy start isn't being sprayed it cuts out complety

The high pressure fuel pump regulator O ring could be the cause. They can split and stop the engine running. They are cheap and easy to replace.
The crank sensor is the other thing that can stop the engine.
6000 Kpa on cranking sounds low, suggesting to the regulator O rings.

OK so I just buy regulator repair kit and fit it? Guessing airintake Inlet Manifold all got.to come off? Any special tools need for the job? And finally anything.i need to be careful of? Thanks again recently done waterpump and thermostat so shouldn't be a problem would that o ring cause it to suddenly stop without warning? Can hear a hissing noise from around the hp pump thinking about it

One more thing sorry to be a pain lol just getting used to mechanics would that o ring cause the engine light to appear

Haribo2k7 said:

One more thing sorry to be a pain lol just getting used to mechanics would that o ring cause the engine light to appear

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No light. If the O ring splits, the engine won't start or run.
You'll need a Torx for the regulator bolts and they are often barstuards to remove. It's worthwhile getting some replacement bolts along with the O ring set.

Nodge68 said:

No light. If the O ring splits, the engine won't start or run.
You'll need a Torx for the regulator bolts and they are often barstuards to remove. It's worthwhile getting some replacement bolts along with the O ring set.

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Yeah OK I will give it a go just wondering why the Mil light is on as well I had it cleared and it came straight back I changed cam sensor and still the same just don't have much hope if it wouldn't cause the engine light to come on

Cheers for your help the repair kit is only 10 quid so worth doing to rule it out cheers for the help I will let you know the results

Haribo2k7 said:

Yeah OK I will give it a go just wondering why the Mil light is on as well I had it cleared and it came straight back I changed cam sensor and still the same just don't have much hope if it wouldn't cause the engine light to come on

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Maybe the crank sensor has failed. That would put the MIL on.

Nodge68 said:

Maybe the crank sensor has failed. That would put the MIL on.

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Hi all just replaced engine bay fuel pump and sender unit and still no joy have a fuel pressure sensor coming.tomorrow so fingers crossed!!! I did notice one thing when I cracked the fuel rail open fuel only comes out slowly and no pressure there does anyone know what would.cause this??

Haribo2k7 said:

Hi all just replaced engine bay fuel pump and sender unit and still no joy have a fuel pressure sensor coming.tomorrow so fingers crossed!!! I did notice one thing when I cracked the fuel rail open fuel only comes out slowly and no pressure there does anyone know what would.cause this??

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Have you replaced the high pressure fuel pump regulator O rings?

Nodge68 said:

Have you replaced the high pressure fuel pump regulator O rings?

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Not yet was going.to do that next just didn't think it would suddenly stop without warning the car was running OK then all of a sudden it just cut out And Mil light come on....is this usually the case when they need replacing and can see it leaking anywhere

Haribo2k7 said:

Not yet was going.to do that next just didn't think it would suddenly stop without warning the car was running OK then all of a sudden it just cut out And Mil light come on....is this usually the case when they need replacing and can see it leaking anywhere

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Can't ****

Haribo2k7 said:

Not yet was going.to do that next just didn't think it would suddenly stop without warning the car was running OK then all of a sudden it just cut out And Mil light come on....is this usually the case when they need replacing and can see it leaking anywhere

Click to expand...

The high pressure fuel pump regulator O rings don't normally stop the engine from running, but neither do the lift pumps. The O rings will prevent it from starting though.
The crank sensor will kill it dead and illuminate the MIL. Have you read the codes yet?

Nodge68 said:

The high pressure fuel pump regulator O rings don't normally stop the engine from running, but neither do the lift pumps. The O rings will prevent it from starting though.
The crank sensor will kill it dead and illuminate the MIL. Have you read the codes yet?

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Have changed cam sensor as well

The O rings on the hp pump or on the regulator?