How touchy is the match fuel distribution + air meter

[blk84cab]

If I find a used fuel distribution block at the bone yard will I need to get the matching air flow meter or would you think they are the same?

I found a bunch of differing numbers and could only figure that the things might need to match up.

Should I take the matching meter & be o.k. between models?

My fuel distribution block was full of brown crap & my #1 & #2 cylinders were not getting fuel.

I put one together from the first one I saw at the salvage yard & it leaked bad. I would not suggest taking these things apart to see inside.

I should have just bolted it on to find out first.

How about audi units?
What are the fuel distribution units that have power going to them & can I use one of those if I send it juice?

I know alot of questions but hey someone has got to know these things.
Thanks for your support,
Eric

[THEVEEDUBB]

so u were running 2 cylynders? ouch well i recomend NOT one from the bone yard unless it "stress free" and its fairly clean....its has to fit PERFECTLY so same exact engine as ur current VW and ur flow meter should work but IMO and being somewhat engine paranoid because i wount be gettin my VW soon id get a new flow meter too.....or jus go aftermarket to make it easirér..and yea its always a good i dea not to take one apart ..i never trust the bone yard.....i had to replace my MAF sensor 4 x in the monty when i got a new air intake get somthing new or from another person