{"id":2076,"date":"2025-04-11T00:29:30","date_gmt":"2025-04-11T04:29:30","guid":{"rendered":"https:\/\/documotors.com\/?p=2076"},"modified":"2025-04-11T00:29:30","modified_gmt":"2025-04-11T04:29:30","slug":"p0138","status":"publish","type":"post","link":"https:\/\/documotors.com\/wiki\/p0138\/","title":{"rendered":"P0138"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">El <strong>c\u00f3digo DTC P0138<\/strong> indica que el sensor de ox\u00edgeno posterior al catalizador en el banco 1 (Sensor 2) est\u00e1 generando una se\u00f1al de voltaje excesivamente alta. Este valor an\u00f3malo puede ser interpretado por la ECU como una condici\u00f3n de mezcla excesivamente rica en los gases de escape, o una falla en el propio sensor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Este c\u00f3digo puede afectar el monitoreo del catalizador y provocar fallos adicionales relacionados con el control de emisiones.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:1.2em !important; border-bottom:1px solid #ccc !important; padding-bottom:0.8em !important; padding-top:1.2em !important; padding-right:25px; cursor:pointer; background:url(https:\/\/documotors.com\/wp-content\/uploads\/99174301744201836.svg) no-repeat right center; background-size:20px auto;\">Descripci\u00f3n del Error<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El sensor O2 Sensor 2 deber\u00eda mantener una se\u00f1al de voltaje relativamente estable y m\u00e1s baja que el sensor anterior (Sensor 1). Si se detecta una lectura superior a 1.0\u202fV durante un periodo prolongado, se activa el <strong>c\u00f3digo DTC P0138<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Las causas frecuentes son:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sensor O2 en corto a alimentaci\u00f3n<\/li>\n\n\n\n<li>Sensor contaminado por combustible, aceite o refrigerante<\/li>\n\n\n\n<li>Conector defectuoso o con presencia de humedad<\/li>\n\n\n\n<li>Exceso real de combustible en la mezcla (fallo en inyectores, presi\u00f3n de combustible elevada)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:1.2em !important; border-bottom:1px solid #ccc !important; padding-bottom:0.8em !important; padding-top:1.2em !important; padding-right:25px; cursor:pointer; background:url(https:\/\/documotors.com\/wp-content\/uploads\/99174301744201836.svg) no-repeat right center; background-size:20px auto;\">Diagn\u00f3stico<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Un esc\u00e1ner automotriz permite visualizar en tiempo real la se\u00f1al del sensor O2. Si se mantiene fija en 1.0\u202fV o m\u00e1s sin mostrar oscilaci\u00f3n alguna, se sospecha de una falla en el sensor o un cortocircuito.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tambi\u00e9n es recomendable inspeccionar el conector y medir con mult\u00edmetro la se\u00f1al de voltaje para descartar un suministro an\u00f3malo desde el sistema el\u00e9ctrico. Si se sospecha de mezcla rica real, conviene verificar el sistema de inyecci\u00f3n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:1.2em !important; border-bottom:1px solid #ccc !important; padding-bottom:0.8em !important; padding-top:1.2em !important; padding-right:25px; cursor:pointer; background:url(https:\/\/documotors.com\/wp-content\/uploads\/99174301744201836.svg) no-repeat right center; background-size:20px auto;\">\u00bfEs grave el c\u00f3digo P0138?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">S\u00ed. Aunque el sensor posterior no regula directamente la mezcla, su lectura err\u00f3nea impide que la ECU eval\u00fae correctamente la eficiencia del catalizador, y puede provocar errores acumulativos que afecten otros sistemas relacionados con el control de emisiones.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Adem\u00e1s, si la mezcla rica es real y no un fallo del sensor, podr\u00eda da\u00f1ar el catalizador en poco tiempo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:1.2em !important; border-bottom:1px solid #ccc !important; padding-bottom:0.8em !important; padding-top:1.2em !important; padding-right:25px; cursor:pointer; background:url(https:\/\/documotors.com\/wp-content\/uploads\/99174301744201836.svg) no-repeat right center; background-size:20px auto;\">Posibles soluciones<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Verificar el conector y el cableado en busca de cortos a positivo.<\/li>\n\n\n\n<li>Limpiar o sustituir el sensor si est\u00e1 contaminado.<\/li>\n\n\n\n<li>Comprobar que no haya mezcla rica permanente causada por inyectores o sensores MAF\/ECT defectuosos.<\/li>\n\n\n\n<li>Sustituir el sensor si el voltaje es anormal incluso con todos los sistemas funcionando correctamente.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:1.2em !important; border-bottom:1px solid #ccc !important; padding-bottom:0.8em !important; padding-top:1.2em !important; padding-right:25px; cursor:pointer; background:url(https:\/\/documotors.com\/wp-content\/uploads\/99174301744201836.svg) no-repeat right center; background-size:20px auto;\">Prevenciones<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mantener el sistema de inyecci\u00f3n limpio y en buen estado.<\/li>\n\n\n\n<li>Utilizar sensores de ox\u00edgeno OEM o de calidad equivalente.<\/li>\n\n\n\n<li>No ignorar se\u00f1ales como humo negro, consumo excesivo o olor a combustible.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:1.2em !important; border-bottom:1px solid #ccc !important; padding-bottom:0.8em !important; padding-top:1.2em !important; padding-right:25px; cursor:pointer; background:url(https:\/\/documotors.com\/wp-content\/uploads\/99174301744201836.svg) no-repeat right center; background-size:20px auto;\">C\u00f3digos relacionados con el P0138<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>P0136<\/strong> \u2013 Sensor O2 Banco 1 Sensor 2: Circuito defectuoso<\/li>\n\n\n\n<li><strong>P0137<\/strong> \u2013 Sensor O2 Banco 1 Sensor 2: Entrada baja<\/li>\n\n\n\n<li><strong>P0140<\/strong> \u2013 Sensor O2 Banco 1 Sensor 2: No actividad detectada<\/li>\n\n\n\n<li><strong>P0141<\/strong> \u2013 Calentador del Sensor O2 Banco 1 Sensor 2: Circuito defectuoso<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>El c\u00f3digo DTC P0138 indica que el sensor de ox\u00edgeno posterior..<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[95],"tags":[96,90,18],"class_list":["post-2076","post","type-post","status-publish","format-standard","hentry","category-dtc","tag-codigos-dtc","tag-diagnosticos","tag-sistemas"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>C\u00f3digo de Error P0138 \u2013 Sensor O2 Banco 1 Sensor 2: Entrada Alta<\/title>\n<meta name=\"description\" content=\"El c\u00f3digo DTC P0138 indica que el sensor de ox\u00edgeno posterior al catalizador en el banco 1 (Sensor 2) est\u00e1 generando una se\u00f1al de voltaje excesivamente\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/documotors.com\/wiki\/p0138\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00f3digo de Error P0138 \u2013 Sensor O2 Banco 1 Sensor 2: Entrada Alta\" \/>\n<meta property=\"og:description\" content=\"El c\u00f3digo DTC P0138 indica que el sensor de ox\u00edgeno posterior al catalizador en el banco 1 (Sensor 2) est\u00e1 generando una se\u00f1al de voltaje excesivamente\" \/>\n<meta property=\"og:url\" content=\"https:\/\/documotors.com\/wiki\/p0138\/\" \/>\n<meta property=\"og:site_name\" content=\"DOCUMOTORS\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-11T04:29:30+00:00\" \/>\n<meta name=\"author\" content=\"Documotors\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"ScholarlyArticle\",\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/p0138\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/p0138\\\/\"},\"author\":{\"name\":\"Documotors\",\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/#\\\/schema\\\/person\\\/411fd02c35bb3865a3a5d2fd168ebf08\"},\"headline\":\"P0138\",\"datePublished\":\"2025-04-11T04:29:30+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/p0138\\\/\"},\"wordCount\":441,\"publisher\":{\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/#organization\"},\"keywords\":[\"C\u00f3digos DTC\",\"Diagn\u00f3sticos\",\"Sistemas\"],\"articleSection\":[\"DTC\"],\"inLanguage\":\"es\"},{\"@type\":[\"WebPage\",\"ItemPage\"],\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/p0138\\\/\",\"url\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/p0138\\\/\",\"name\":\"C\u00f3digo de Error P0138 \u2013 Sensor O2 Banco 1 Sensor 2: Entrada Alta\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/#website\"},\"datePublished\":\"2025-04-11T04:29:30+00:00\",\"description\":\"El c\u00f3digo DTC P0138 indica que el sensor de ox\u00edgeno posterior al catalizador en el banco 1 (Sensor 2) est\u00e1 generando una se\u00f1al de voltaje excesivamente\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/p0138\\\/#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/documotors.com\\\/wiki\\\/p0138\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/p0138\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Portada\",\"item\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"P0138\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/#website\",\"url\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/\",\"name\":\"DocuMotors.com\",\"description\":\"La enciclopedia automec\u00e1nica\",\"publisher\":{\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/#organization\"},\"alternateName\":\"DocuMotors\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"es\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/#organization\",\"name\":\"DocuMotors.com\",\"alternateName\":\"DocuMotors\",\"url\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/wp-content\\\/uploads\\\/56580701744287115.svg\",\"contentUrl\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/wp-content\\\/uploads\\\/56580701744287115.svg\",\"width\":750,\"height\":149,\"caption\":\"DocuMotors.com\"},\"image\":{\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/documotors.com\\\/wiki\\\/#\\\/schema\\\/person\\\/411fd02c35bb3865a3a5d2fd168ebf08\",\"name\":\"Documotors\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/393f985db6c76c4dd00deea0404d9b8e37cfe24ae92756e38dd78177296c78d5?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/393f985db6c76c4dd00deea0404d9b8e37cfe24ae92756e38dd78177296c78d5?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/393f985db6c76c4dd00deea0404d9b8e37cfe24ae92756e38dd78177296c78d5?s=96&d=mm&r=g\",\"caption\":\"Documotors\"},\"description\":\"En Documotors.com, nos especializamos en proporcionar contenido de calidad sobre mec\u00e1nica automotriz, mantenimiento vehicular, reparaci\u00f3n de motores, diagn\u00f3stico de fallas y tecnolog\u00eda automotriz. Nuestro objetivo es convertirnos en la plataforma de referencia para estudiantes, mec\u00e1nicos, aficionados y profesionales del sector automotor. Brindamos informaci\u00f3n precisa, confiable y actualizada sobre mec\u00e1nica automotriz, desde conceptos b\u00e1sicos hasta gu\u00edas avanzadas de reparaci\u00f3n y mantenimiento, ayudando a nuestros usuarios a comprender mejor el funcionamiento de los veh\u00edculos.\",\"sameAs\":[\"https:\\\/\\\/documotors.com\\\/wiki\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"C\u00f3digo de Error P0138 \u2013 Sensor O2 Banco 1 Sensor 2: Entrada Alta","description":"El c\u00f3digo DTC P0138 indica que el sensor de ox\u00edgeno posterior al catalizador en el banco 1 (Sensor 2) est\u00e1 generando una se\u00f1al de voltaje excesivamente","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/documotors.com\/wiki\/p0138\/","og_locale":"es_ES","og_type":"article","og_title":"C\u00f3digo de Error P0138 \u2013 Sensor O2 Banco 1 Sensor 2: Entrada Alta","og_description":"El c\u00f3digo DTC P0138 indica que el sensor de ox\u00edgeno posterior al catalizador en el banco 1 (Sensor 2) est\u00e1 generando una se\u00f1al de voltaje excesivamente","og_url":"https:\/\/documotors.com\/wiki\/p0138\/","og_site_name":"DOCUMOTORS","article_published_time":"2025-04-11T04:29:30+00:00","author":"Documotors","twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"ScholarlyArticle","@id":"https:\/\/documotors.com\/wiki\/p0138\/#article","isPartOf":{"@id":"https:\/\/documotors.com\/wiki\/p0138\/"},"author":{"name":"Documotors","@id":"https:\/\/documotors.com\/wiki\/#\/schema\/person\/411fd02c35bb3865a3a5d2fd168ebf08"},"headline":"P0138","datePublished":"2025-04-11T04:29:30+00:00","mainEntityOfPage":{"@id":"https:\/\/documotors.com\/wiki\/p0138\/"},"wordCount":441,"publisher":{"@id":"https:\/\/documotors.com\/wiki\/#organization"},"keywords":["C\u00f3digos DTC","Diagn\u00f3sticos","Sistemas"],"articleSection":["DTC"],"inLanguage":"es"},{"@type":["WebPage","ItemPage"],"@id":"https:\/\/documotors.com\/wiki\/p0138\/","url":"https:\/\/documotors.com\/wiki\/p0138\/","name":"C\u00f3digo de Error P0138 \u2013 Sensor O2 Banco 1 Sensor 2: Entrada Alta","isPartOf":{"@id":"https:\/\/documotors.com\/wiki\/#website"},"datePublished":"2025-04-11T04:29:30+00:00","description":"El c\u00f3digo DTC P0138 indica que el sensor de ox\u00edgeno posterior al catalizador en el banco 1 (Sensor 2) est\u00e1 generando una se\u00f1al de voltaje excesivamente","breadcrumb":{"@id":"https:\/\/documotors.com\/wiki\/p0138\/#breadcrumb"},"inLanguage":"es","potentialAction":[{"@type":"ReadAction","target":["https:\/\/documotors.com\/wiki\/p0138\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/documotors.com\/wiki\/p0138\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Portada","item":"https:\/\/documotors.com\/wiki\/"},{"@type":"ListItem","position":2,"name":"P0138"}]},{"@type":"WebSite","@id":"https:\/\/documotors.com\/wiki\/#website","url":"https:\/\/documotors.com\/wiki\/","name":"DocuMotors.com","description":"La enciclopedia automec\u00e1nica","publisher":{"@id":"https:\/\/documotors.com\/wiki\/#organization"},"alternateName":"DocuMotors","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/documotors.com\/wiki\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"es"},{"@type":"Organization","@id":"https:\/\/documotors.com\/wiki\/#organization","name":"DocuMotors.com","alternateName":"DocuMotors","url":"https:\/\/documotors.com\/wiki\/","logo":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/documotors.com\/wiki\/#\/schema\/logo\/image\/","url":"https:\/\/documotors.com\/wiki\/wp-content\/uploads\/56580701744287115.svg","contentUrl":"https:\/\/documotors.com\/wiki\/wp-content\/uploads\/56580701744287115.svg","width":750,"height":149,"caption":"DocuMotors.com"},"image":{"@id":"https:\/\/documotors.com\/wiki\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/documotors.com\/wiki\/#\/schema\/person\/411fd02c35bb3865a3a5d2fd168ebf08","name":"Documotors","image":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/secure.gravatar.com\/avatar\/393f985db6c76c4dd00deea0404d9b8e37cfe24ae92756e38dd78177296c78d5?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/393f985db6c76c4dd00deea0404d9b8e37cfe24ae92756e38dd78177296c78d5?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/393f985db6c76c4dd00deea0404d9b8e37cfe24ae92756e38dd78177296c78d5?s=96&d=mm&r=g","caption":"Documotors"},"description":"En Documotors.com, nos especializamos en proporcionar contenido de calidad sobre mec\u00e1nica automotriz, mantenimiento vehicular, reparaci\u00f3n de motores, diagn\u00f3stico de fallas y tecnolog\u00eda automotriz. Nuestro objetivo es convertirnos en la plataforma de referencia para estudiantes, mec\u00e1nicos, aficionados y profesionales del sector automotor. Brindamos informaci\u00f3n precisa, confiable y actualizada sobre mec\u00e1nica automotriz, desde conceptos b\u00e1sicos hasta gu\u00edas avanzadas de reparaci\u00f3n y mantenimiento, ayudando a nuestros usuarios a comprender mejor el funcionamiento de los veh\u00edculos.","sameAs":["https:\/\/documotors.com\/wiki"]}]}},"_links":{"self":[{"href":"https:\/\/documotors.com\/wiki\/wp-json\/wp\/v2\/posts\/2076","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/documotors.com\/wiki\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/documotors.com\/wiki\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/documotors.com\/wiki\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/documotors.com\/wiki\/wp-json\/wp\/v2\/comments?post=2076"}],"version-history":[{"count":1,"href":"https:\/\/documotors.com\/wiki\/wp-json\/wp\/v2\/posts\/2076\/revisions"}],"predecessor-version":[{"id":2077,"href":"https:\/\/documotors.com\/wiki\/wp-json\/wp\/v2\/posts\/2076\/revisions\/2077"}],"wp:attachment":[{"href":"https:\/\/documotors.com\/wiki\/wp-json\/wp\/v2\/media?parent=2076"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/documotors.com\/wiki\/wp-json\/wp\/v2\/categories?post=2076"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/documotors.com\/wiki\/wp-json\/wp\/v2\/tags?post=2076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}