I'm in the process of building a custom base map for a 3sgte engine with 2150cc injectors, individual coil pack ignition, and a gen 4 caldina crank trigger with a custom hall sensor setup for the home position sensor.
My big question is this... I know around idle that my pulse width is supposed to be hovering between .5ms and .6ms on these big boy injectors, how exactly does this master fuel trim thing work?
Here is my understanding of it...
If I set my master fuel trim to 5ms, that means that at 100kpa load, 100 in the field equals the the 5ms I input as the master fuel trim? Meaning that for a .5ms pulse at 40kPa at idle with the master fuel at 5ms id have to input 10 in the field?