http://www.fixya.com/tags/dtc_p1456_evap_system_leak_detectedUnsolved technical support problems provided by FixYa users.en-usCopyright (c) 2007 FixYa, LTD. All rights reserved.info@fixya.comSat, 26 Dec 2009 20:51:00 GMT80http://www.fixya.com/cars/t707784-question_regarding_honda_odyssey_1999My Odyssey the check engine on, I have scaned and gave me two codes 1.P0420, 2.P1456 can any body help me with this proble. Thanks, RamonSat, 26 Dec 2009 20:51:00 GMT