Tell me if my simplistic thoughts are right.
Surging is too little air
Cruise control is too much air.
Perry
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Tell me if my simplistic thoughts are right.
Surging is too little air
Cruise control is too much air.
Perry
In very basic general terms:
surging is spark
cruise control, too much air
stalling, not enough air, rich condition.
Yet, most tuning manuals/stickies/recommendations control surging through the throttle followers or running airflow rather than the timing table.
Why is that?
Perry
The stock idle spark tables do a good job for the most part. When you combine the effects of the follower/cracker and DAF with the spark tables, the PCM starts over/under correcting before fully returning to the idle state.