Lately my car had shut down its engine mutiple times while I was driving. Before shutting down it felt like I took of my feet from the gas pedal and then pressed it again althrough I always was on full throttle. I could restart it immediately after it shut down.
I then logged some parameters of the car using OBD2. There I noticed that the Fuel Rail Pressure dropped multiple times (see first diagramm). At the last drop the engine shut down (didn't react to adding gas and rpm dropped to zero).
After the shutdown of the engine I find the errorcode P0087 in my cars systemlog.
In idle mode the pressure is (nearly) stable as shown in the second diagramm. Be aware that the scale isn't the same as on the first diagramm!
What is the cause of this?
The Car is a Ford Focus Tunier 1.6 tcdi diesel 109 PS constructed in 2006 and it has about 145.000km / 90100 miles
Futher information (mentioned in comments)
- Last full service at about 130.000km / 80880miles
- Fuel filter changed at about 114000km / 70836miles
I followed the list provided by GdD. The replacement of the fuel-filter solved the problem. The engine works again and the error code doesn't appear anymore