Freelander 2 (LR2) Very strange problem, need advise.

Have a 2008 Freelander 2 V6 3.2 petrol engine.
After few meters driving vehicles loss power gradually till bareilly engine stay on.
No fault codes in any module.
Fuel pump has been replñaced with a complete new module.
Cat has been removed for this test.
MAP sensor has been replaced.
Any idea what to check next?

Exopar said:

Have a 2008 Freelander 2 V6 3.2 petrol engine.

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I think you'll find it's a straight 6 engine.


Have you done a diagnostic read, may including looking at the live data?

Is the fuel level at 1/4 of the tank or less?

Nodge68 said:

I think you'll find it's a straight 6 engine.
Yes, you are right, my fault when posting.


Have you done a diagnostic read, may including looking at the live data?
Yes, several times.

Is the fuel level at 1/4 of the tank or less?

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Yes it has been cat deleted too.

Exopar said:

Yes it has been cat deleted too.

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Not all readers are equal. What was the diagnostic unit used to read the codes?

Alibro said:

Not all readers are equal. What was the diagnostic unit used to read the codes?

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Bearmach Hawkeye
Launch X431
Autoenginuity pc based diagnostic software

Does it have less than 1/4 of a tank of fuel?

Nodge68 said:

Does it have less than 1/4 of a tank of fuel?

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No 1/2 tank

is the tank gauge accurate, is it REALLY 1/2 full, or do you just think its half full?

DanClarke said:

is the tank gauge accurate, is it REALLY 1/2 full, or do you just think its half full?

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Added 40 liters when starting to make test regarding the fail.

Total long shot but someone once told me that a neighbour of ours had a similar problem caused by a blocked fuel tank breather creating a vacuum in the tank.
Don't know if it was true or not.

Exopar said:

No 1/2 tank

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It was just a thought. If the level drops to 1/4, and the transfer pump has failed, then the main pump can't pump fuel.

backinblack said:

Total long shot but someone once told me that a neighbour of ours had a similar problem caused by a blocked fuel tank breather creating a vacuum in the tank.
Don't know if it was true or not.

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Fuel tank's don't have breathers, as venting vapours into the atmosphere isn't allowed now.
The space above the fuel in the tank is under partial vacuum, the vapours being drawn into the intake manifold to be burnt.

Nodge68 said:

Fuel tank's don't have breathers, as venting vapours into the atmosphere isn't allowed now.
The space above the fuel in the tank is under partial vacuum, the vapours being drawn into the intake manifold to be burnt.

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Silly me, the breather is there for filling the tank.

Are you certain the fuel you put into the car is good? Have you checked for water in the system?
Around 30 years ago we had a Peugeot 205 diesel that got water in the fuel tank and ended up killing the HP fuel pump.

backinblack said:

Silly me, the breather is there for filling the tank.

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They do have a pipe that returns to the filler pipe before the cap..maybe he ment this pipe was blocked.??