308 2.0 diesel 180HP 2015 - Low pressure fuel system: Too high (P008b)

[eliofernandes]

hi guys, I have an issue with my car.
In winter days, I got the error code P008b - Low pressure fuel system: Too high when starting the car from a cold start. pressing on a gas pedal clears the error service light and when the pedal is released the error light comes back. When the car gets warm enough the error light falls. Sometimes stay in "light" safe mode (does not jump as usual). This only happens on cold weather around and bellow 6°C. please help

 

[kawajo]

hi, there's a sensor on the low fuel pressure pipe. Maybe it's defect when's cpld outside. Try to change it.

 

[eliofernandes]

hi, there's a sensor on the low fuel pressure pipe. Maybe it's defect when's cpld outside. Try to change it.

is this one?

 

[kawajo]

is this one?

looks like

 

[eliofernandes]

looks like

thanks i will check it

 

[eliofernandes]

green ring missing part of it.

 

[eliofernandes]

green ring missing part of it.

 

[Rafael46]

anel verde faltando parte dele.
Voir la pièce jointe 39256

Tenho o mesmo problema no meu 308. Você acabou de trocar o tubo? Ou você também trocou a bomba de alta pressão?

 

[Valentin.D]

Hi,

Your low pressure circuit problem could simply come from your fuel filter.

Being in the business, I start by replacing the diesel filter, while having carried out the tests beforehand.

Firstly, if you can see the data in real time in your car's computer, start by checking if you arrive at the expected values.

But to start with a first solution, try replacing the fuel filter.
Then also pay attention to the fuel used if it is of good quality.

(The problem may occur in the event of very low temperature..)

Good luck, keep us posted.