Originally Posted by chuyler1

If you look it up some say it was to prevent stalling, others will say it was specifically emissions related (despite them existing before emissions was an issue). I think it would likely be most useful in traffic, cruising at 10-15 mph in 2nd gear. Lifting off the throttle as you try to modulate speed without it may cause a slight shutter and bucking, while having it will produce a smoother deceleration transition. So you can remove it...but why?