On my 2008 G8 GT, I noticed that I am getting a lot of Knock Retard while the DOD (Displacment on Demand) is active. Check out the attached log file.
Though knock retard in DOD is not a bad thing in that I am never looking for power while in DOD, the problem is it forces the spark down to the Low Octane table. You will notice that at times, the Knock Learn Factor goes as high as .4.
Now for the question. I want to set up a histogram to track this but because I only want to track it while in DOD, how do I filter so I only see DOD info? The problem is that the Fuel Cut Type PID is how to identify that but it is not numerical. Any sugestions would be appreciated.