2008 A4 2.0T cabrolet
My Engin light and EPC came on and thoes codes where thrown out I ereased the codes restarted the car and the codes came back did that a cuple of times and these codes seem to be the ones that stay the car is sluggish and has a rough and low idle. PCV Valve was just reacently replaced and the ECU was rewired.
Any ideas on what would fix it with out taking it to a dealership??