If it's a sensor, it will usually be the TPS aka Throttle positioning Sensor, but most of the time it would be a Vacuum leak
No it will not.
Yes, just about any sensor on the engine could cause a no start.Yes, just about any sensor on the engine could cause a no start.
Not likely. A bad O2 sensor would illuminate the check engine light and the engine performance would suffer.
Driving through flood water would cause the ignition to fail and stall the engine.
Yes
It could
Coolant Temperature Sensor
Mass airflow sensor and or aircharge sensor is bad
Yes it can. If the sensor sends a false reading it can cause the pcm to over fuel the engine.
check crank sensor
No, it would not. There are many things that could cause a stall at idle. The throttle plate could be dirty as well as the mass air flow sensor. You did not mention the kind of car or engine size. Is the check engine light on, is it when the engine is warmed up or cold?
A bad cam or crank sensor can cause a no start, but the engine will still crank or turn over.