About logging to tune knock

It's been awhile since my last post. Ok, the reason is because I'm really lost with all this knocking thing going on. :-)

It turns out that to tune knock, I only I only need a few parameters. Here's what Rene mentioned to me:

"For checking about knock events through driving all you need to log is, Engine Speed, Engine Load, and Fine Learning Knock Correction, and Feedback Knock Correction. If you see any activity in either Fine or Feedback column find that are in the base timing map and lower the timing. Usually you will not find a data point of the exact engine speed and load so it will usually be a 4 cell area that you are looking for."

The thing is, I've also been logging "Knock Correction Advance" and thinking that a non-positive value means that I have knock! This is not true!

"The Knock Correction Advance table gets its names because that is what the ECU adjusts for knock. There will always be a correlation between Fine Learned and Feedback Corrections. For example if your KC value should be 10 for a given load and rpm and either Fine or Feedback go ahead and pull timing of say -1.4º then you will see your KC value drop to 8.5. Keep in mind that you IAM is at 8 so every value in your Timing Advance table is only being used at 50% of its value because of the way the ECU calculates timing. Let me know if you have any other questions."

Ok, this makes it easier for me to tune the ranges which have knock! :-)