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2006 Odyssey with 170k <- Check Gas Cap & Engine light on with P0455 & P0456

19K views 16 replies 6 participants last post by  John Clark  
My ody has been given me the check gas cap message on off for the last 3-4 months but more frequently now like every trip after I cleared the P0497 code. Just replaced the EVAP purge selonoid valve behind the throttle body. Easy job , YouTube has videos on the Odyssey. Now no more codes or the check gasp cap message. The new valve is from intermittently products. Same as the Honda one made by Denso. My old was made in Mexico. The new one us made in Japan. About $48 on Amazon.