it could be a faulty fuel pump,
it could also be an accelerator pedal sensor throttle,
could be dirty injectors if its a 2.2 turbo diesel?
sometimes the injector pump releases swarf (little fragments of Metal)
which can contaminate the fuel lines and infect the whole system causing injector failures, blockages and even bring the engine to a halt.
get your fuel or fuel pump checked out before it causes major disruption.
Hope that Helps
Bob
TRT Engines
Birmingham
UK
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