I'm having a tough time locating the reason for this very annoying stalling problem.

1. Totally erratic - not induced by time/temperature.
2. It stalls at idle only - especially when coming to a stop after a sustained speed of 20mph or higher.
3. Sometimes it will stall while warming up in 20 to 30 degree weather.
4. I have checked the spark at the coil on all cylinders when it is refusing to start and have excellent spark.
5. It acts like fuel is cut off entirely when stalled but eventually restarts sometimes after a few minutes, sometimes right away.
6. I've checked for water in the gas and used several cans of water remover (Heat).
7. No codes appear.
8. Sometimes it will drive for days without a hint of a problem.

Help!

TIA

macshasta

Here are a few suggestions:

1. Fuel Filter - change it.
2. I'd be looking at testing the flow rate of the fuel pump.

I agree with changing the fuel filter aslap.

have you cleaned the idle air controller (if it has one)?

what about pressure testing the intake?