Hi She's covered 128k, 2006.
I have cleaned fuel pick up, checked fuel lines for leaks, going to change leak off pipes next but look ok
Cleaned and changed fuel filter and housing, cleaned egr and blanked ( was doing this before blank) checked visually wiring, just don't get it.
Only other issue I have never sorted is a proper jumpy throttle pedal, say in traffic it hard to be smooth van lunges forward etc but it's been like this since I owned it 2 years.
It starts fine always does, but I drive away and as soon as i give throttle some pressure cuts out. No stuttering just cuts. But it is very random doesn't always happen.
Cranking fuel pressure initially is 100bar then rises to 300bar.
Drives really well
Can you graph the fuel pressure PID when the car is reluctant to start and post a screen shot here.
Also when it cuts out under throttle application.
I don't know these particular engines that well - but there known faults with the HP pump and PCM's
Also can you do a leak off test.
The only way we can help from this distance is with detailed testing and test results. i.e. good Data to analyse.