Your EVAP purge control valve being left open is the most common reason why your car won’t start after filling up with gas. When you put gas in the tank, the excess air needs to escape, and the EVAP purge control valve helps redirect them to a charcoal canister. If the EVAP purge control valve malfunctions, all that excess air will be into your engine’s combustion chambers—which ultimately makes it harder for your engine to start.
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