Where data-logging my ECU a lot in the last few days. Now have a 3-4 weeks worth of data to analyse. The whole think is really advanced staff ? most of the data is beyond my knowledge. There are complicated relationships between air temperature, AFR, Ignition advance, Ignition correction factor and so on?..
Anyway most important for me at this stage this data:
CF = Ignition Correction Factor. Measured in degrees of timing pulled back (activated by knock sensor activity)
V = knock sensor voltage (looks like amplified by factor of 10)
Graph is 4-th gear pull from roll. Ambient temperature 20C, low humidity, sea-level, 98RON. ECU been fully adopted.
Based on this data we will try to extract formula of CF activation. If successful we will be able to activate WI just before ECU pulls timing under the load.
I also have mounted knock sensor on the engine head the other day and watched it?s performance on oscilloscope while running the motor. It?s mirrored the graph in output voltage activity with it rising as RPM rising.