Purchased a ScangaugeII. Nice. Programmed on x gauge to scan for KR. Went for a road trip yesterday to visit family in northern Wyoming. Most of the time KR sits a 0. Under load going up grades I do have knock. I see references on hear to disconnect the battery ,to let the pcm relearn fuel trims. CAI.
I did get 28.7 MPG on the trip. The best I've seen since owning the car.
I have not done the pcm yet. Will this help with KR.
Also planning to get a PLOG whenever I can locate one. Everyone seems to be going with headers. Any thoughts on the PLOG.
