I have a 94 3000GT Base that has recently began to stall on me. It first began to stall when I applied the brakes and now simply stalls when idling. The throttle body has been cleaned and the car still does it. Is it possible that it's the transmission fluid? It's an auto with over 150K on it and the fluid has never been changed as long as I've owned it.

 

unlikely. but some auto box crap. sensors, solenoids, clutch.

reset the ecu, then take it for a thrash. if it still does it, it's one of the above.

 

bad TPS