- Mar 6, 2016
- Reaction score
- 2018 Honda Civic EX (Hatchback/CVT)
- Vehicle Showcase
I don't understand what you are saying... It doesnt make sense as it is something I can monitor on my car...
Also as per one of the famous tuners on the 10th Gen platform Derek Robinson he chimes in about knock count on our platform...
If this were a forum and I a moderator, I would make this a "sticky", but maybe someone will do it for me here.
"Knock Count" = This parameter is a reflection of the ECU's misfire monitor. It is NOT an accurate reflection of anything other than misfire events. When will you see these normally? Startup, rapid throttle closures, rapid throttle inputs, rapid release of the clutch pedal, and sometimes at idle (especially if you have a lighter flywheel/clutch combo, and/or plugs that have been gapped down to prevent spark blowout at high load). A completely stock car, operating perfectly will still accumulate these counts. In my experience with these engines, you will see more activity on cylinder four compared to others, as the crank position sensor is physically located closest to there on the block. This usually isn't a concern area unless you see a steep count in a very, very short time (like 50+ in a few seconds), which will likely trip a P0300-variant DTC code.
"Knock Control" = This parameter is the ECU's determination of fuel quality. Movement here indicates the knock sensor hears what it thinks is knock activity, and reports to the ECU to apply a steeper ignition retard to avoid continued knock activity. This value is dynamic, and WILL move from time to time. On Civic Si models, there doesn't seem to be a forced rise at play at WOT like the non-Si 1.5T ECU's (which naturally rise above 5,200-5,400rpm regardless of sensor input). Movement that goes up and up and up and never comes down is more concerning than movement alone. Knock control can typically be manipulated down by driving the car in a higher gear at lower engine speeds and targeting atmospheric pressure on the MAP sensor reading.
Now back to vacation. See you all on Tuesday, and I love you all.