If you've never checked the PCV valve hosing, it's a good place to start.
The plastic hose that runs from the valve down the firewall to the emission valve by the power steering pump.
This plastic hose can develop pin holes and cause stalling, idling issues.
Becareful as your car is of age, the hose can be very brittle and break just by touching it...Trust me..
I had an EGR code and it turned out to be this hose and DPFE.
Did you try to test the MAF?
Sounds like a vacum leak to me.
If it's a miss, stall or low idling (step on gas to keep alive) on a warm engine and no cold engine problems,
I may suggested the fuel pump.
Pressure test the fuel line.
