Shuts off while driving

We need to suspect two things to start. If the canister was an issue then we may have a problem with the purge valve as well. The black pellets that came out was the charcoal that goes in the canister.

I would remove the purge valve and make sure it is not stuck. Plus they are pretty cheap that I would just go ahead and replace it.

I put instructions below.

If this is not it, then we need to start running through this guide for this issue:

https://www.2carpros.com/articles/engine-stalls

The most important thing is to monitor fuel pressure when this happens to make sure the pressure is not dropping.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Let's start with this material and go from there. Let us know what the fuel pressure is if the purge is okay. Thanks