Black smoke it caused by too much fuel so you might have a stuck fuel injector, I would remove the spark plugs to see which ones are black, this will be the cylinder having the problem and where the fuel injectors needs to be replaced, I would replace all of them but that is up to you. Here is a guide to help you
https://www.2carpros.com/articles/engine-black-smoke
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Saturday, September 7th, 2024 AT 9:36 AM