My allroad has a nasty hesitation. 2.5tdi ake engine. 200k. The fault code that keeps coming back is 550 'start of injection regulation, value above upper control limit'
This points to a fault in the injection pump, but I replaced that new about 20k ago, a suggestion is the needle lift sensor (part of injector #3)
Has anyone played this game before?
This points to a fault in the injection pump, but I replaced that new about 20k ago, a suggestion is the needle lift sensor (part of injector #3)
Has anyone played this game before?