car is smoking and running rough?

scan for codes and check fuel pressure with a gauge first.

This happens when a fuel injector sticks open, I would remove the spark plugs and look for the cylinder that looks different than the others (wet-black) this will be the cylinder that needs the new fuel injector. here is how to change them out. I would install new spark plugs as well.

Recommended Spark Plugs
DENSO .................... SK20R11
NGK .................... IFR6A11

https://www.2carpros.com/articles/how-to-change-spark-plugs

Please replace the fuel filter as well. Check out the images (below). Please let us know what happens.