car has the temp light on, vehicle suddenly stalled at low rpm.poor idle,starts.

I would say the ctsensor shorted..

Have a mechanic do a diagnostic. pretty sure it is in "limp mode" so it will not overheat & ruin the motor. that code can be cleared & then it should run fine. then you have to find & fix the cause of the overheating issue..which is where i am at now.