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Some of what you say doesn't quite line up. White smoke and fuel in exhaust smell at startup is normal but only lasts the first minute or less. If you smell it after coldstart procedure then I would be concerned. Fuel smell in the engine bay is not normal. This is why I asked if you have logs showing fuel rail drop. Are you sure you did not see grey smoke burning off the oil from the pcv from long idle since I don't think you had the catch can on when it happened correct?
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