I own an 01 IS300 auto. It has been stalling out on me when driving lately and now it doesn't run. It will run for a sec then die. Has fuel pressure and cleaned the throttle body. Replaced the igniter recently and it did nothing. Any input would be greatly appreciated

 

Is the check engine light on? If not, have you plugged in a scanner anyway to see if there are any codes that are saved?

If the computer says everything is fine, my first thought is that it might be mass airflow sensor related. Try driving the car with the sensor unplugged and see what happens (just around your neighborhood). If the car drives better you probably need a new MAF

 

Mine would stall at low idle. The culprit was the oil control valve.