Originally Posted by duxthe1

Only when braking. It actually happens coming out of decel, when the ecu is looking at the potentiometer voltage to set the idle valve position. If potentiometer voltage drops below the lower threshold (somewhere around .4-.5V IIRC) it assumes a stalled engine and doesn't even try to catch and idle it.

When checking the potentiometer voltage, its this lower voltage range that must be smooth and linear. A glitch at 2V isn't going to cause this problem, but if it goes open somewhere around .5V-1V you've found your smoking gun