W204 Fuel High Pressure Fault

[KEITH9966]

Hi All
If you have a fault were a diagnostic tool identified a high pressure fuel fault on the Mercedes model w204 220 cdi fuel rail, which when trips out casues the car to go into limp home mode. The issue seem to be the fuel temperature sensor which has been replaced on my car and seems to have fixed the issue.

 

[Srdl]

Hi Keith, welcome to the forum and glad you got your issue sorted.

 

[Blobcat]

Hello and welcome

 

[A.J.]

Hi Keith, welcome to the forum

 

[KEITH9966]

Hi Keith, welcome to the forum and glad you got your issue sorted.

Well thanks for the welcome I may have spoken to soon. The fault went away for 3days and then came back. So I back to diagnosing the issue the car reporting to high pressure at fuel rail. Any ideas !!

 

[mersum1es]

fuel quantity valve

 

[John Laidlaw]

Welcome

 

[alexanderfoti]

Welcome!

As above, not much else causes high rail pressure apart from quantity control valve.