Freelander 1 Freelander 1 TD4 eml with exclamation mark appear 5 seconds when full throthle. PLEASE HELP!!

andyfreelandy · Saturday at 15:27

LP fuel pressure is dropping low. 276 is too low. Would.expect 320 minimum.

Not sure what pressure it cuts the HP pump to protect it but LP fuel pump would be my next replacement. Get a good make. PIERBURG if you can get one.

manoleandreigabriel@gmail · Saturday at 15:34

andyfreelandy said:
LP fuel pressure is dropping low. 276 is too low. Would.expect 320 minimum.

Not sure what pressure it cuts the HP pump to protect it but LP fuel pump would be my next replacement. Get a good make. PIERBURG if you can get one.

Hy and thank you for your response. Any ideea of this is what i need?

andyfreelandy · Saturday at 16:22

Yes that is the one.

They are hard to find in UK. Where are you and what price is it please ?

manoleandreigabriel@gmail · Saturday at 16:24

andyfreelandy said:
Yes that is the one.

They are hard to find in UK. Where are you and what price is it please ?

Romania. In your money ~ 110 gbp

andyfreelandy · Saturday at 16:29

Before you buy the pump. It is worth unplugging the hp sensor on the end of the fuel rail and the lp sensor which is down near the steering rack behind the battery.

Spray clean the connectors and try one more time

My TD4 has a lp pressure of 390 -425 kpa.

So 275 is very low.

manoleandreigabriel@gmail · Saturday at 16:38

andyfreelandy said:
Before you buy the pump. It is worth unplugging the hp sensor on the end of the fuel rail and the lp sensor which is down near the steering rack behind the battery.

Spray clean the connectors and try one more time

My TD4 has a lp pressure of 390 -425 kpa.

So 275 is very low.

I will try this tomorrow and let you know the result.

andyfreelandy · Saturday at 16:46

Also, thinking of other possible causes.

There is a fuel filter in the tank unit with the fuel gauge sender. Access under rear seat and carpet.

manoleandreigabriel@gmail · Saturday at 16:47

andyfreelandy said:
Also, thinking of other possible causes.

There is a fuel filter in the tank unit with the fuel gauge sender. Access under rear seat and carpet.

I took out that "thing" and cleaned it properly. Was clean anyway.

andyfreelandy · Saturday at 16:53

ok. good.

Best wishes to Romania. I stayed in Brasov many years ago. Also Transylvanian mountains. Doing charity work.

andyfreelandy · Saturday at 17:13

Worth a read. This one turned out to be the LP sensor itself.

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manoleandreigabriel@gmail · Saturday at 17:45

andyfreelandy said:
Worth a read. This one turned out to be the LP sensor itself.

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I will test tomorrow lp sensor and see. As an ideea, can you provide a part code for LP sensor because i can't find this part.

manoleandreigabriel@gmail · Saturday at 17:46

andyfreelandy said:
ok. good.

Best wishes to Romania. I stayed in Brasov many years ago. Also Transylvanian mountains. Doing charity work.

Brasov area it's great. Good food, great landscape, very nice.

manoleandreigabriel@gmail · Sunday at 09:26

andyfreelandy said:
Worth a read. This one turned out to be the LP sensor itself.

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Hi. With lp sensor out, live data shows 440 kpa every time (at idle and at full throttle) and eml with exclamation mark still appears (still with sensor out).
Any ideea how can i measure this sensor? Needs measurement on sensors pins or on plug's pins?

andyfreelandy · Sunday at 09:42

It is explained in the attachment. You need to measure voltage on the pins with the sensor plugged into the wiring loom.

manoleandreigabriel@gmail · Sunday at 13:39

andyfreelandy said:
Worth a read. This one turned out to be the LP sensor itself.

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I have measured lp sensor.
Pin 1 it has 5.06 v - idle and throttle
Pin 2 (it vary between 7 and 10 kohm) i have an automatic measure machine and i think that's why it shows like this on zero scale
Pin 3 it has 3.8v at idle and 3.2v at throttle.

What i should do next? Pump changed or this sensor changed?

manoleandreigabriel@gmail · Sunday at 13:57

kernowsvenski said:
I'd ignore how long the reader says the MIL has been on. The issue for the OP is why is it lighting up on the dash momentarily with a corresponding loss of power, and low mpg.

@manoleandreigabriel@gmail When you apply full throttle, is there much smoke from the exhaust?

Alteredtech said:
Hi,

For the temp sensor, open your eyes look next to yellow oil gauge, there is a connector just next to it. The engine works perfectly without it.

For fuel sensor, on your diag device you should have live data for the fuel presure first the low presure pump and the high presure pump. Check that first.

Can be the fuel filter, the low presure pump …

Hi Alteredtech, any thoughts after measurements?

andyfreelandy · Sunday at 16:40

should be 5V at PIN 1, PIN 2 should be 0V, and PIN 3 at idle should be approximately 4.3V, and when the low fuel line pressure increases the voltage output should increase from 4.3V to just under 5V

So yours is reading low pressure which we know.

It could be pump low pressure or the sensor not giving correct values.

Can you find a spare sensor to eliminate it ??

If not then go for cheapest part first !!

The only other thing to do is install a pressure gauge to see what the fuel pressure really is LP. But that is complex and requires test gear.

manoleandreigabriel@gmail · Sunday at 17:09

andyfreelandy said:
should be 5V at PIN 1, PIN 2 should be 0V, and PIN 3 at idle should be approximately 4.3V, and when the low fuel line pressure increases the voltage output should increase from 4.3V to just under 5V

So yours is reading low pressure which we know.

It could be pump low pressure or the sensor not giving correct values.

Can you find a spare sensor to eliminate it ??

If not then go for cheapest part first !!

The only other thing to do is install a pressure gauge to see what the fuel pressure really is LP. But that is complex and requires test gear.

Can you provide me please, some part code for LP sensor? I can't find this part.

andyfreelandy · Sunday at 18:20

Part is WKW 000081 and is complete with pipe.

I'd put my money on the pump but obviously it is your money and your call !!

manoleandreigabriel@gmail · Sunday at 18:47

I already ordered lp pump but i asked part no for lp sensor just to see price in my country and still , i can't find this part here...

andyfreelandy said:
Part is WKW 000081 and is complete with pipe.

I'd put my money on the pump but obviously it is your money and your call

Freelander 1 Freelander 1 TD4 eml with exclamation mark appear 5 seconds when full throthle. PLEASE HELP!!

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