2000 vw bettle 2.0 car stops running in traffic you let it sit for about 20 to 30 minutes and it starts again?

I have a 2000 VW Beetle 2.0 and it was the engine speed or crank sensor. The symptom was, I would be driving or idling and the engine would quit. I used my OBD scan tool and it showed the code and the sensor was replaced. The part cost was $125.