Theres usually 2 trim factors, long term trim and short term trim, long term is just an integrated version of short. If your engine is running poorly I'd expect a warning light to be on, as in this situation the trim constant goes too far one way and triggers an alarm, so I'm not sure whats happened in your circumstance, something has changed and the ecu hasnt detected it.
The ecu selects values referencing load and rpm on the map, then trims those values by reading the oxygen sensor to get as near perfect mixture as it can. That looks like a fuel map, the values pertain to an open time for the injectors, for an 8 bit system 255 would be the max.įor a 2d map which that is one axis is engine rpm and the other engine load, load can be calculated from various sensors or sometimes its just the throttle position.
I havent setup lpg systems, however I have dabbled with petrol injection and megasquirt.
0 kommentar(er)
