91 camaro rs engine cuts off..help!!

OK...I got a 3.1 V6. The rpms will usually rev up and down when coming to a stop sometimes to the point of cutting off. I can be slowing down to take a turn and it did cut off once. Its getting annoying very quick. The computer is'nt throwing any codes and there are none in memory. The only thing I can think of is a vacuum leak or ignition module. The module is'nt that old and I guess either it works or don't. It idles fine at times without a hiccup. Done the vacuum leak test with a spray bottle of water and did'nt find anything at the moment or I did'nt notice it. Anyone else ever have this problem?

Ken

I would not advise using a spray bottle of water to check for a vacuum leak; water tends not to be very combustible. Try a can of carb cleaner (be careful), spray it where you think you have a leak, and see if the engine surges, if so, you found your leak.