02 Voyager2.4 When I turn on the air cond. the engine starts to surge and stall

What is your question?

car seems to idle fine when air is off. only seems to act up when air is turned on. We have cleaned Throttle body. Spark plugs are in good shape...wires are good.If it stalls, I have to turn the key all the way off for one or two seconds or else the starter will turn over but will not start. COuld it be the EGR valve