{"id":8377,"date":"2017-06-11T23:56:42","date_gmt":"2017-06-11T23:56:42","guid":{"rendered":"http:\/\/mazdaman.x10host.com\/sh13085\/"},"modified":"2017-06-11T23:56:42","modified_gmt":"2017-06-11T23:56:42","slug":"sh13085","status":"publish","type":"page","link":"https:\/\/chroot-me.in\/16ND\/sh13085\/","title":{"rendered":"HEATED OXYGEN SENSOR (HO2S) [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=\"SH13084\">&lt; Previous<\/a> <a class=\"nextPage\" href=\"SH13086\">Next &gt;<\/a><\/p>\n<h2>2016 &#8211; MX-5 &#8211; Engine<\/h2>\n<p><a name=\"id0140f4004700\" id=\"id0140f4004700\"><\/a><\/p>\n<h3>HEATED OXYGEN SENSOR (HO2S) [SKYACTIV-G 2.0]<\/h3>\n<p><a name=\"id0140f400470001\" id=\"id0140f400470001\"><\/a><\/p>\n<h4>Purpose<\/h4>\n<ul type=\"disc\">\n<li>\n<p>Detects the oxygen concentration (air\/fuel ratio) in the exhaust gas as basic information for mainly determining the fuel injection amount and as information for determining the deterioration of the catalytic converter.<\/p>\n<\/li>\n<\/ul>\n<p>          <a name=\"id0140f400470002\" id=\"id0140f400470002\"><\/a><\/p>\n<h4>Function<\/h4>\n<ul type=\"disc\">\n<li>\n<p>Detects the oxygen concentration (air\/fuel ratio) in the exhaust gas and sends it to the PCM as an oxygen concentration (air\/fuel ratio) signal.<\/p>\n<p align=\"center\">HO2S characteristic<\/p>\n<p align=\"center\"><a href=\"\/16ND\/wp-content\/uploads\/2017\/05\/AMXUUN00001405.GIF\"><img decoding=\"async\" align=\"absmiddle\" border=\"0\" src=\"\/16ND\/wp-content\/uploads\/2017\/05\/AMXUUN00001405.GIF\"><\/a><\/p>\n<\/li>\n<li>\n<p>The HO2S detects rich\/lean of the oxygen concentration compared to the theoretical air\/fuel ratio.<\/p>\n<\/li>\n<\/ul>\n<p>          <a name=\"id0140f400470003\" id=\"id0140f400470003\"><\/a><\/p>\n<h4>Construction<\/h4>\n<ul type=\"disc\">\n<li>\n<p>The HO2S is located on the pipe between the warm-up three-way catalyst (WU-TWC) and the three-way catalyst (TWC) of the catalytic converter.<\/p>\n<p align=\"center\"><a href=\"\/16ND\/wp-content\/uploads\/2017\/05\/AMXUUN00001406.GIF\"><img decoding=\"async\" align=\"absmiddle\" border=\"0\" src=\"\/16ND\/wp-content\/uploads\/2017\/05\/AMXUUN00001406.GIF\"><\/a><\/p>\n<\/li>\n<li>\n<p>A zirconia element has been adopted for the detection area of the HO2S.<\/p>\n<\/li>\n<li>\n<p>A zirconia element generates voltage according to the difference in the oxygen concentration between atmosphere side and exhaust gas side.<\/p>\n<p align=\"center\"><a href=\"\/16ND\/wp-content\/uploads\/2017\/05\/AMXUUN00001407.GIF\"><img decoding=\"async\" align=\"absmiddle\" border=\"0\" src=\"\/16ND\/wp-content\/uploads\/2017\/05\/AMXUUN00001407.GIF\"><\/a><\/p>\n<\/li>\n<li>\n<p>The zirconia element is kept at a specified temperature by the heater for quick activation.<\/p>\n<\/li>\n<\/ul>\n<p>          <a name=\"id0140f400470004\" id=\"id0140f400470004\"><\/a><\/p>\n<h4>Operation<\/h4>\n<ul type=\"disc\">\n<li>\n<p>Sends signals, which vary according to the oxygen concentration (air\/fuel ratio), to the PCM.<\/p>\n<\/li>\n<ul type=\"square\">\n<li>\n<p>When the oxygen concentration in the exhaust gas is high, the output voltage is low because there are almost no difference in the oxygen concentration. (Output voltage approx. <b>0\u20140.5 V<\/b>)<\/p>\n<\/li>\n<li>\n<p>When the oxygen concentration in the exhaust gas is low, the output voltage is high because the difference in the oxygen concentration is large. (Output voltage approx. <b>0.5\u20141.0 V<\/b>)<\/p>\n<\/li>\n<\/ul>\n<li>\n<p>The PCM applies approx. <b>1.5 V<\/b> to the voltage output from the HO2S to prevent false diagnosis of the HO2S output voltage.<\/p>\n<p align=\"center\"><a href=\"\/16ND\/wp-content\/uploads\/2017\/05\/AMXUUN00001408.GIF\"><img decoding=\"async\" align=\"absmiddle\" border=\"0\" src=\"\/16ND\/wp-content\/uploads\/2017\/05\/AMXUUN00001408.GIF\"><\/a><\/p>\n<\/li>\n<\/ul>\n<p>          <a name=\"id0140f400470005\" id=\"id0140f400470005\"><\/a><\/p>\n<h4>Fail-safe<\/h4>\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>DTC No.<\/p>\n<\/td>\n<td valign=\"middle\" align=\"center\" cellspacing=\"\" rowspan=\"\" colspan=\"NaN\">\n<p>Fail-safe function<\/p>\n<\/td>\n<\/tr>\n<tr valign=\"\" align=\"\" cellspacing=\"\" rowspan=\"\">\n<td valign=\"middle\" align=\"center\" cellspacing=\"\" rowspan=\"\" colspan=\"NaN\">\n<p>P0037:00<\/p>\n<\/td>\n<td valign=\"middle\" align=\"left\" cellspacing=\"\" rowspan=\"\" colspan=\"NaN\">\n<ul type=\"disc\">\n<li>\n<p>Stops fuel feedback control.<\/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>P0038:00<\/p>\n<\/td>\n<td valign=\"middle\" align=\"left\" cellspacing=\"\" rowspan=\"\" colspan=\"NaN\">\n<ul type=\"disc\">\n<li>\n<p>Stops fuel feedback control.<\/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>P0054:00<\/p>\n<\/td>\n<td valign=\"middle\" align=\"left\" cellspacing=\"\" rowspan=\"\" colspan=\"NaN\">\n<ul type=\"disc\">\n<li>\n<p>Stops fuel feedback control of HO2S.<\/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>P0137:00<\/p>\n<\/td>\n<td valign=\"middle\" align=\"left\" cellspacing=\"\" rowspan=\"\" colspan=\"NaN\">\n<ul type=\"disc\">\n<li>\n<p>Fixes the output duty value of the A\/F sensor heater control.<\/p>\n<\/li>\n<li>\n<p>Stops fuel feedback control of A\/F sensor.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\n          <a class=\"prevPage\" href=\"SH13084\">&lt; Previous<\/a> <a class=\"nextPage\" href=\"SH13086\">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 HEATED OXYGEN SENSOR (HO2S) [SKYACTIV-G 2.0] Purpose Detects the oxygen concentration (air\/fuel ratio) in the exhaust gas as basic information for mainly determining the fuel injection amount and as information for determining the deterioration of the catalytic converter. Function Detects the oxygen concentration (air\/fuel ratio) in the exhaust gas and sends it to the PCM as an oxygen concentration (air\/fuel ratio) signal. HO2S characteristic The HO2S [&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-8377","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/8377","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=8377"}],"version-history":[{"count":0,"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/8377\/revisions"}],"wp:attachment":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/media?parent=8377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}