sometimes i get some black smoke coming out, when rev'ing pretty hard either idling or going along..

on a de-catted p1.. can any1 tell me if this is normal with a de-cat or should i be worried??

car is running fine otherwise..

thanx

 

Sounds like its over fueling... sometimes they do this if really being thrashed, but i would get it looked at even if you just get a session on the rolling road to see what is happening with the fueling..

Someone else may be able to give you a more technical answer..

Dan

 

yeah, agree with dan there.

black smoke means its running very rich.