What what is a PO456 code mean

Asked by mpound Jun 24, 2018 at 11:41 AM about the 2004 Dodge RAM 1500 SLT Quad Cab LB RWD

Question type: Maintenance & Repair

I have a PO456 code showing what does it mean

2 Answers
540

Seth answered 5 years ago

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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50

Steve answered 4 years ago

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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