Rep Power: 204

Alright got the turbo on last week and i am using pcs xfc to run my fuel trim. When i first start my car it idles rough for like maybe the first minute or somethimes less and after that it runs fine. Do i have something setup wrong in the settings or is this normal? And is the pcs xfc causing you car to throw a cel?

 
Rep Power: 253

not to be mean man but search. i was searching for pcs and this poppe up. there are other threads too.