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Q: I am getting a P0171 code together with a P0466 code. on 2006 Pontiac G6

I am getting poor fuel mileage and after filling the tank with gas, I get a crank no start condition. I let it sit for a few minutes and it will start.
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Check for vacuum leak could set both codes. Possible tank vent problem but no crank, then of course it wont start! No CRANK means the starter is not turning the engine! No START means engine is spinning over but wont fire up and run! Could be fuel tank vent solenoid IF it will crank but not start after fill up.
Of course it cranks, I wrote "crank no start condition" but thanks for the tip I will check that vent solenoid and for vacuum leaks.
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