From your description of the strong fuel smell I suspect you have a leak but hidden. That is because a bad injector will 90% of the time create a misfire in the cylinder and trigger a code. I suspect it is the pulse dampener on the fuel rail. To check it just pull the vacuum line off with the engine running, if there is any signs of fuel, the dampener is bad.
It would cause rapid pressure drop and fuel smell because it is dumping fuel into the vacuum system.
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Saturday, June 1st, 2019 AT 11:40 AM