Tell me if my simplistic thoughts are right.
Surging is too little air
Cruise control is too much air.
Perry
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.