{"id":1152,"date":"2010-06-05T21:52:44","date_gmt":"2010-06-06T02:52:44","guid":{"rendered":"http:\/\/freeautomechanic.com\/mechanic\/forum\/?p=1152"},"modified":"2010-06-07T06:08:59","modified_gmt":"2010-06-07T11:08:59","slug":"1997-honda-accord-errors","status":"publish","type":"post","link":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2010\/06\/1997-honda-accord-errors","title":{"rendered":"1997 Honda Accord Errors"},"content":{"rendered":"<div>\n<div>\n<div>\n<div>1997 Honda Accord 4-cyl VTEC engine light is on. Autozone diagnostic tester displayed these possible errors\/causes:<\/div>\n<div><strong>P0401<\/strong> &#8211; EGR insufficient flow, possible EGR Valve, blocked EGR passages in engine;<\/div>\n<p><strong>P0171 &#8211; <\/strong>(1) Fuel system too lean bank 1 (Cly #1), large vacuum leak [I found a disconnected hose between valve cover (Cyl#1) and air intake], (2) Fuel system concern, (3) Ignition system concern, (4) MAF sensor faulty, (5) HO2S\/AF ratio sensor fault.<\/p>\n<p><strong>P0453 &#8211; <\/strong>(1) Sensor circuit high voltage, (2) Open or short circuit condtion, (3) Poor electrical condition, (4) Faulty FTP sensor.<\/p>\n<p>I don&#8217;t know where these sensors are located and whether I should change them out if other possible causes might produce the same errors. I found a hose disconnected between the valve cover at #1 Cyl and the air intake.<\/p>\n<p>Can someone shed some light on what might be wrong and how I should proceed?<\/p>\n<p>Julian<\/p>\n<p>I looked for vacuum leaks and found a hose disconnected at the #1 Cyl valve cover. The other end was connected to the air intake cover. If I knew where the sensors in question are, I might be able to check the wiring and do some continuity and voltage checks.<\/p><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>1997 Honda Accord 4-cyl VTEC engine, Engine light on, Autozone diagnostics performed. Errors: P0401, P0171, P0453. Got any ideas?<\/p>\n","protected":false},"author":829,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[1,4],"tags":[11],"class_list":["post-1152","post","type-post","status-publish","format-standard","hentry","category-auto-repair-questions","category-honda","tag-check-engine-light-codes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>1997 Honda Accord Errors - FreeAutoMechanic Advice<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2010\/06\/1997-honda-accord-errors\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1997 Honda Accord Errors\" \/>\n<meta property=\"og:description\" content=\"1997 Honda Accord 4-cyl VTEC engine, Engine light on, Autozone diagnostics performed. 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