car just shuts off when i stop at a light

[Goya20]

I have had a complete tune up and i recently put 5w-30 and every since the car would idle fine and drive, then all of a sudden just idle low and cut off, while warmed up and all. bad fuel filter? I checked intake hoses for vacuum leaks. Any suggestions?

[jlevie]

Change the O2 sensor if it has 100k on it. Also change the fuel filter, clean the ICV, check the idle switch in the TPS, and have a smoke test run on the intake & fix the leaks it reveals.