After being run for about an hour last night my glow plug light started flashing and everytime I started from a stationary position the engine stalled. It started straight away again and ran ok till the next stop then the whole thing happened again. I think this is called safe mode? The car seems to lack acceleration power and whenever it is run for a while the stalling happens. I have a 2000 1.9tdi. Any help would be appreciated. Thanks