So I know I have an exhaust leak and I need a coolant flush and an o2 sensor, but my car begins to idle weird when it warms up then stalls. It sounds like the car is revving then stopping and it does that about three times then the car shuts off. Could the three problems listed above be the cause?

 

None of the things you mentioned could cause idle problems.

Idle problems are generally due to vacuum leaks or TPS problems.

 

Ah I see I will have to bring it in and have them check for leaks, thanks.

 

Yeah i have the same problem , when i start it, it revs to 3rpms then it starts to idle at 800rpms , but when i rev it to 3rpms and let go of the throttle my rpm gauge drops and the cars shuts off , any ideas? its my first car/rotary xD fc 1987 rx7