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Originally Posted by tpepmeie
OK. What do you want to know about it? It is pretty simple, and the first of three potential PID parameters to control pulsewidth based on feedback from the O2 sensor. There are primarily two tables at work...one is the base response to O2 error vs. airflow. There is a smaller proportional step at zero airflow (idle).
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Isn't there a constant that defines the max airflow to be considered as IDLE? The 7747 code used a separate Prop Gain Bias constant for idle and the 2D table was pretty coarse.
EBL has 2 constants for Prop Gain at idle based on offset and duration and 4 tables.
So 1 Prop Gain table defining a gain based on Gms/sec which then gets further modified by a second table with factors based on O2 Error, right?
Which one do you usually modify and why?
If I change the gain up or down, what would I feel in the way the motor runs?
Why wouldn't I want to be able to modify this in the bin?
Thanks for this. Any more on the disassembly lesson?
Dominic