Hi I have a ed falcon which has piss poor headlights ,on high good because it uses the extra light ,but on low beam it bloody poor tried replaced the the light a** very good high but p poor on low beam ,is there a fuse to control the low beam ,have tried 50% brighter bulbs all lights great ,but replace old bulbs 60/55 and hey very poor.low beam but very good high beam any ideas guys to help mb

Maybe your reflectors are stuffed in the headlights....my ED was, so I fitted new headlights...all good now.
Top pic is stuffed reflector....new headlight fitted below that.

 

 

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Thread moved to the correct forum. The 6 cylinder section relates to engine issues not headlights.. If no one posted an answer to help you before we saw this the thread would have been deleted.