B7 S4 Misfire

[SkillzVrt]

So I got a B7 S4 that's misfiring from cylinder 5-8 which is one whole side. There is a vacuum leak and failed to pass a fuel supply test on Vag. Any suggestions ?

[Dpkhym2]

So I got a B7 S4 that's misfiring from cylinder 5-8 which is one whole side. There is a vacuum leak and failed to pass a fuel supply test on Vag. Any suggestions ?

How about some P-codes and is this hot or cold? Right after start up or continuous? Any clatter noises?

You need to be much more descriptive if you want help.

[SkillzVrt]

How about some P-codes and is this hot or cold? Right after start up or continuous? Any clatter noises?

You need to be much more descriptive if you want help.

Hot and Cold
Right after start up right away and continuous right after. Coils and plugs were changed and intake manifold gaskets.
P codes are just random misfire and beside that no other faults beside misfire.