I get to a red light or stop sign my car dies on me?

Hello,

This also could happened due to a number reasons, it could be due to a vacuum leak, faulty idle air control valve, dirty throttle body etc.

Here is a helpful guide:

https://www.2carpros.com/articles/stall-at-idle

Cleaning out the idle air control valve and the throttle body can improve the idle quality. Which might be a good idea to do as this improve overall performance of the engine.

https://www.2carpros.com/articles/idle-air-control-valve-service

This can also happen due to a weak alternator. If it is the alternator it will drain the battery and the engine will not start.
Test the alternator output to the battery.

Take a look at this guide. It cover on how to test the alternator.

https://www.2carpros.com/articles/how-to-check-a-car-alternator

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.