What what is a PO456 code mean
2 Answers
Small leak in evap system.. if you put gas on while it's running that could be one cause, loose gas cap could be another, bad vent solenoid another.
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I have an 2019 Ram with only 900 miles on it. The engine light is on with Code P0456. I always fill my truck up with Gas when it’s still running. What do I do now?
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