Thread: Rough Idle - Smooth riding - PCV replacement?

Thanks for all the info guys...and you were right slowna06 it wasn't the pcv. Then engine light went out and it seems to be running better I have a feeling the spark plug wires were arching. Running right to Advanced Auto next time the light comes on.

Here is another thing to think of maybe the EGR valve was stuck open that'll cause no vacuum at idle which would cause a rough idle just my tow cents worth