Hi,
If you smell fuel and there is black smoke, the engine is getting too much fuel. The first thing I suggest is to check the fuel pressure. If it is excessive due to a faulty pressure regulator, it can cause this.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
In addition to testing the pressure, when you turn the key off, pay attention to see how quickly the pressure drops off, and let me know what you see.
If you look below, I attached the manufacturer's fuel pressure specifications.
Also, pic 2 below shows the location of the fuel pressure regulator. There will be a vacuum hose attached to it. Inspect the vacuum hose and make sure it is in good condition, not leaking, and is attached at both ends.
Let me know what you find.
Joe
See pics below.
Images (Click to make bigger)
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Thursday, March 16th, 2023 AT 8:49 PM