Ok, I kinda embarrassed to ask but,
I have according to my Engine Plate a VW AG 1.8 20v 1J, or in laymans terms a Golf GTI 1.8 Non Turbo (for my sins).
However when i go looking for parts it asks for example if its a 1J1 or an AGN or AGU or a BAF.
Now i can pretty much rule out a BAF, but how do i tell if its an AGN or AGU? Also i assume "1J1" is just a 1J but cant seem to find a definitive answer.
Can somebody clear it up for me (and then bury the post to hide my shame).
