View Full Version : What causes surgin/cruise control?
pkincy
January 29th, 2006, 11:04 AM
Tell me if my simplistic thoughts are right.
Surging is too little air
Cruise control is too much air.
Perry
TAQuickness
January 29th, 2006, 11:38 AM
In very basic general terms:
surging is spark
cruise control, too much air
stalling, not enough air, rich condition.
pkincy
January 29th, 2006, 11:46 AM
Yet, most tuning manuals/stickies/recommendations control surging through the throttle followers or running airflow rather than the timing table.
Why is that?
Perry
TAQuickness
January 29th, 2006, 12:57 PM
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.
Powered by vBulletin® Version 4.2.5 Copyright © 2024 vBulletin Solutions Inc. All rights reserved.