{"id":8414,"date":"2017-06-11T23:56:40","date_gmt":"2017-06-11T23:56:40","guid":{"rendered":"http:\/\/mazdaman.x10host.com\/sh13122\/"},"modified":"2017-06-11T23:56:40","modified_gmt":"2017-06-11T23:56:40","slug":"sh13122","status":"publish","type":"page","link":"https:\/\/chroot-me.in\/16ND\/sh13122\/","title":{"rendered":"AIR FUEL RATIO (A\/F) SENSOR HEATER CONTROL [SKYACTIV-G 2.0]"},"content":{"rendered":"<div class=\"node node SERVICE_HIGHLIGHTS\">\n    <\/p>\n<div class=\"textleft\">\n<div class=\"attr CONTENT c1\">\n<div class=\"content\">\n          <link rel=\"stylesheet\" type=\"text\/css\" href=\"style.css\" media=\"screen\"><a class=\"prevPage\" href=\"SH13121\">&lt; Previous<\/a> <a class=\"nextPage\" href=\"SH13123\">Next &gt;<\/a><\/p>\n<h2>2016 &#8211; MX-5 &#8211; Engine<\/h2>\n<p><a name=\"id0140f4785500\" id=\"id0140f4785500\"><\/a><\/p>\n<h3>AIR FUEL RATIO (A\/F) SENSOR HEATER CONTROL [SKYACTIV-G 2.0]<\/h3>\n<p><a name=\"id0140f478550001\" id=\"id0140f478550001\"><\/a><\/p>\n<h4>Outline<\/h4>\n<ul type=\"disc\">\n<li>\n<p>Performs duty control of the heater according to the engine operation conditions (exhaust gas temperature) for A\/F sensor protection and enhanced emission performance.<\/p>\n<\/li>\n<li>\n<p>By controlling the A\/F sensor heater, stable detection of oxygen concentration is possible even with low exhaust gas temperature, and feedback control for the fuel injection control is possible even after cold engine start, enhancing the emission performance under cold temperatures.<\/p>\n<\/li>\n<li>\n<p>A pre-heat has been adopted to prevent water, (produced from the exhaust system when the engine is started), from adhering to the sensor and damaging it.<\/p>\n<\/li>\n<\/ul>\n<p>          <a name=\"id0140f478550002\" id=\"id0140f478550002\"><\/a><\/p>\n<h4>Block Diagram<\/h4>\n<p align=\"center\"><a href=\"\/16ND\/wp-content\/uploads\/2017\/05\/AM2UUN00001064.GIF\"><img decoding=\"async\" align=\"absmiddle\" border=\"0\" src=\"\/16ND\/wp-content\/uploads\/2017\/05\/AM2UUN00001064.GIF\"><\/a><\/p>\n<p><a name=\"id0140f478550003\" id=\"id0140f478550003\"><\/a><\/p>\n<h4>Operation<\/h4>\n<p><a name=\"id0140f478550004\" id=\"id0140f478550004\"><\/a><\/p>\n<h5>Pre-heat control<\/h5>\n<ul type=\"disc\">\n<li>\n<p>The A\/F sensor heater is operated at a duty ratio of approx. 15 % within the specified time directly after the engine is started.<\/p>\n<\/li>\n<\/ul>\n<p>          <a name=\"id0140f478550005\" id=\"id0140f478550005\"><\/a><\/p>\n<h5>Normal control<\/h5>\n<ul type=\"disc\">\n<li>\n<p>The PCM operates the A\/F sensor heater based on the following control conditions:<\/p>\n<\/li>\n<\/ul>\n<table border=\"1\" cellpadding=\"0\" cellspacing=\"@colsep\" bordercolor=\"#CCCCCC\" frame=\"box\" rules=\"all\">\n<tbody valign=\"\" cellspacing=\"1\" rowspan=\"\">\n<tr valign=\"\" align=\"\" cellspacing=\"\" rowspan=\"\">\n<td valign=\"middle\" align=\"center\" cellspacing=\"\" rowspan=\"\" colspan=\"NaN\">\n<p>Output duty ratio<\/p>\n<\/td>\n<td valign=\"middle\" align=\"center\" cellspacing=\"\" rowspan=\"\" colspan=\"NaN\">\n<p>Control condition<\/p>\n<\/td>\n<\/tr>\n<tr valign=\"\" align=\"\" cellspacing=\"\" rowspan=\"\">\n<td valign=\"middle\" align=\"center\" cellspacing=\"\" rowspan=\"\" colspan=\"NaN\">\n<p>0 %<\/p>\n<\/td>\n<td valign=\"middle\" align=\"left\" cellspacing=\"\" rowspan=\"\" colspan=\"NaN\">\n<ul type=\"disc\">\n<li>\n<p>Ignition switched off<\/p>\n<\/li>\n<li>\n<p>Engine stopped<\/p>\n<\/li>\n<li>\n<p>Engine start (cranking)<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr valign=\"\" align=\"\" cellspacing=\"\" rowspan=\"\">\n<td valign=\"middle\" align=\"center\" cellspacing=\"\" rowspan=\"\" colspan=\"NaN\">\n<p>0\u2015100 %<\/p>\n<p>(Duty ratio determined by measuring the element temperature by the A\/F sensor heater element impedance)<\/p>\n<\/td>\n<td valign=\"middle\" align=\"left\" cellspacing=\"\" rowspan=\"\" colspan=\"NaN\">\n<ul type=\"disc\">\n<li>\n<p>After engine warm-up (such as value fluctuates by battery condition)<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\n          <a class=\"prevPage\" href=\"SH13121\">&lt; Previous<\/a> <a class=\"nextPage\" href=\"SH13123\">Next &gt;<\/a><\/p>\n<div align=\"right\">\n            <a href=\"\"#\">Back to Top<\/a>\n          <\/div>\n<div align=\"center\">\n            <em>\u00a9 2014 Mazda North American Operations, U.S.A.<\/em>\n          <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>&lt; Previous Next &gt; 2016 &#8211; MX-5 &#8211; Engine AIR FUEL RATIO (A\/F) SENSOR HEATER CONTROL [SKYACTIV-G 2.0] Outline Performs duty control of the heater according to the engine operation conditions (exhaust gas temperature) for A\/F sensor protection and enhanced emission performance. By controlling the A\/F sensor heater, stable detection of oxygen concentration is possible even with low exhaust gas temperature, and feedback control for the fuel injection control is possible even after cold engine [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-8414","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/8414","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/comments?post=8414"}],"version-history":[{"count":0,"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/8414\/revisions"}],"wp:attachment":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/media?parent=8414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}