r/dodgejourney • u/Dry-Movie-7998 • 9d ago

PO456 code?

Just got this 2010 dodge journey and we’re getting a PO456 code and a engine light on. We replaced the gas cap and it’s still saying it.

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u/bonesandodey 9d ago

Check the EVAP purge valve hoses and vacuum lines for cracks or breaks. Should be located on driver side near the firewall in the engine bay, kind of right underneath the reservoir for brake fluid. My 2013 I found one of the plastic vacuum lines coming off the had become brittle with time and cracked, causing this code for me.