Rough idle???

[Hali]

When ever I floor it my car will run rough for a while and when sitting in traffic it starts idling very rough anyone know what it could be? It's aum 1.8t with forge tip and milltek cat back

[barrym381]

try cleaning the throttle body an check with vw if your car is due coil packs under the recall 

[Hali]

I've tried VW for recall no luck  I think I've seen Throttle body cleaner in halfords, it sometimes hesitates and then pulls really fast does that sound like the throttle body?

[Hali]

Gonna give it the full works soon coil packs plugs oil clean the throttle body, then a trip down to r-tech I think 

[dom]

Could also be a split breather pipe

[brewey]

What diverter valve are you running? Sound like when my OEM one split.

[Wazzzer]

lambda can also cause this. You need a VAG COM scan to make sure

[Hali]

Stock dv, when I had the forge tip done they found split pipes under the manifold and changed it

[brewey]

My guess is split diaphragm in the DV. Either get a forge 007p or 008 or the new revision OEM 710 vag DV

[Hali]

Was just reading another post about it running rich if the mafs been unplugged and that the cat can get clogged up?