[extanker]

Originally Posted by stephen wilson

I found some information, but I'm not sure how it relates to early cars without electronic throttle actuation. For one wheel slippage, the brakes are applied to that wheel. When both wheels slip, a combination of reduced throttle, fuel, and timing is used. One interesting tid-bit, one rear tire slip during deceleration ( trail throttle while turning, or a bad down-shift ) , PSM will add throttle to stabilize the car.

I have an "after sales training" pdf with lots of good information, but it's too large to attach here. I could send it to your personal email if you want.
Steve

EDC...GM calls it engine drag controll