Misfire on my rs5

[Craigh1984]

Hi guys 

Hoping someone can help me with my misfire!

It's misfiring on 4 cylinders 1,2,5,6, iv had new plugs, upgraded my coil packs to APR had injectors tested and cleaned and yet still misfiring!? There is no fault code coming up for the crank position sensor which iv read up on which can cause a bad misfire. The battery is fine which can also cause a misfire also, soooo I'm really baffled and getting very annoyed now haha can someone please help with any ideas!? I'm at a loss now.

Thanks guys in advance.