w639 cold engine/ engine management light

[MattyW639]

Hi new here.
Have a Vito 639 109 CDI 2009
Problem is as follows.
Engine management light randomly goes on, for a few weeks. Now morning when it is cold engine dies when going to third gear and bit more acceleration used. Van starts after no problems and goes but found out that if using too much acceleration it kicks off. If going gently goes fine. Have plugged in and find that it's fuel pressure is too high. Is that injectors or fuel pressure sensor. Don't want to go buy injectors if the problem stays. Have anyone had this problem before. Some days when it's hot weather van goes without light going on.

Thank you for any advice.

 

[MattyW639]

Sorry actually it is Fuel Rail/System Pressure - Too Low Bank 1 P0087

 

[WilliamParsons]

The symptoms you describe, including the engine management light coming on, engine stalling in cold weather when accelerating in third gear, and high fuel pressure readings, are often associated with a malfunctioning fuel pressure sensor or fuel pressure regulator. It's less likely to be a problem with the injectors. To address this issue, have a mechanic inspect and test the fuel pressure sensor and regulator. Replacing the faulty component should resolve the problem, and it's a more cost-effective solution than replacing injectors. These symptoms can occur due to various factors, and it's not uncommon in some vehicles, so it's worth having the sensor and regulator checked.

 

[Oleks1992]

Sorry actually it is Fuel Rail/System Pressure - Too Low Bank 1 P0087

If fault code is for low fuel pressure then you should check injector leak off quantity first

 

[MattyW639]

Problems solved after long time. Should start from the basic first thing that's in the fuel system and that's fuel filter. After replacing it no errors or malfunction. Van drivers like dream now.

 

[StMarks]

Problems solved after long time. Should start from the basic first thing that's in the fuel system and that's fuel filter. After replacing it no errors or malfunction. Van drivers like dream now.

Well done Matty, and thanks for taking the time to update with the resolution.