Early 90s Buick, car has not stalled in a long time. After extensive maintenance which fixed injection issues, suddenly acquired distinct stalling on idle behavior. Starts ok in traffic, but still quite scary.
ICV is new, mechanics mentioned that EGR valve is semi-clogged.
What should I look into? V6 distributorless injector engine SFI (multi-port sequential).
ICV being idle control valve, Buick being LeSabre.
EDIT: it appears, aside simply stalling on idle, it also chokes when starting to move off idle, as if there's amajor fuel shortage. I can only REV it through to be able to move forward when this happens.
Changing the pump, air and fuel filters has not altered this behavior.
