Originally Posted by
LeeT5
Fuel is not sucked into the injectors, the fuel pressure should be minimum 280Bar in the rail to start. Once started, the fuel pressure is kept at a regulated pressure by the FP regulator. A fuel pressure sensor, determines if enough pressure is present in the rail to enable the car to run.
The injectors simply open/close when switched by the ECM.
Looking at those fault codes and your symptoms I’d say you have either a faulty regulator or more commonly, the FPS is faulty.
Sticking/faulty EGR valve would cause it to not restart, especially when cold rather than hot.
However, once running they never normally cause an engine to just cut out and certainly don’t cause a misfire.
If the LP pump (or electric pump in the tank) is not running, then the car would never start in the first place.
I will also say this; on rare occasions it has been known for sludge to build up in the tank. This is sucked into the filter and will cause a low fuel pressure fault code. It will cause the car to cut out eventually and lack of power/performance.
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