Quick question- digging into the calibration of my 5.9- peering into the maps- I've found that the MAIN SOI Timing- (there are five maps- the transient, the high density, mid- high density, mid low and low density) it 'seems' that a more positive value the more advanced the timing- BTDC while a negative value occurs ATDC. That is my take away so far.
This seems the same for the Pilot timing map: more positive value the more advanced the timing- BTDC while a negative value occurs ATDC.
While for the Post injection maps - a more positive value seems to retard the timing further after TDC.
Can someone confirm this?
Thanks