TDI Injector pump on 2001 Volkswagen Beetle

car doesn't have any power, and dealer does not know what problem is. Could it be injector pump, cause fuel filter was replaced, or could it be the throttle sensor?

Asked by for the 2001 Volkswagen Beetle
Just to make it clear, is this a Beetle GLS with a 1.9 diesel engine?

1 more answer
If this is a 1.9 tdi check the intake for build up....I see almost all plugged if over 100K and a good cleaning fixes the no power problem..