{"id":39757,"date":"2026-03-24T16:58:21","date_gmt":"2026-03-24T14:58:21","guid":{"rendered":"https:\/\/diagnozabam.ro\/sfaturi\/?p=39757"},"modified":"2026-03-24T16:58:21","modified_gmt":"2026-03-24T14:58:21","slug":"p0137-code-o2-sensor-circuit-low-voltage","status":"publish","type":"post","link":"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0137-code-o2-sensor-circuit-low-voltage\/","title":{"rendered":"P0137 Code \u2013 O2 Sensor Circuit Low Voltage"},"content":{"rendered":"<p data-start=\"392\" data-end=\"565\">The <strong data-start=\"396\" data-end=\"435\">P0137 diagnostic trouble code (<a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0205-code-injector-circuit-malfunction-cylinder-5\/\">DTC<\/a>)<\/strong> indicates that the <strong data-start=\"455\" data-end=\"484\">Engine Control Unit (ECU)<\/strong> has detected a <strong data-start=\"500\" data-end=\"564\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/obd2-winter-codes-what-they-mean-and-why-they-appear\/\">low voltage<\/a> signal from the <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0134-code-o2-sensor-circuit-no-activity-detected\/\">oxygen sensor<\/a> on Bank 1 Sensor 2<\/strong>.<\/p>\n<p data-start=\"567\" data-end=\"736\">The <strong data-start=\"571\" data-end=\"599\">downstream <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0134-code-o2-sensor-circuit-no-activity-detected\/\">oxygen sensor<\/a><\/strong> (Sensor 2) is located <strong data-start=\"622\" data-end=\"655\">after the catalytic converter<\/strong> and is used to monitor catalytic converter efficiency and <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/wet-vs-dry-timing-belt-what-drivers-must-know\/\">emissions<\/a> performance.<\/p>\n<p data-start=\"738\" data-end=\"884\">When the ECU detects that the sensor voltage drops below the expected <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/electric-car-range-2026-real-conditions-explained\/\">range<\/a>, it stores the <strong data-start=\"829\" data-end=\"843\">P0137 code<\/strong> and turns on the <strong data-start=\"861\" data-end=\"883\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/%e2%9a%99%ef%b8%8f-faulty-maf-sensor-symptoms-causes-fixes\/\">Check Engine<\/a> Light<\/strong>.<\/p>\n<hr data-start=\"886\" data-end=\"889\" \/>\n<h2 data-section-id=\"ajbzd1\" data-start=\"891\" data-end=\"916\">What Is Bank 1 Sensor 2<\/h2>\n<p data-start=\"918\" data-end=\"969\">Oxygen sensors are installed in the <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/exhaust-smoke-colors\/\">exhaust<\/a> system.<\/p>\n<ul data-start=\"971\" data-end=\"1166\">\n<li data-section-id=\"1s6co62\" data-start=\"971\" data-end=\"1021\">\n<p data-start=\"973\" data-end=\"1021\"><strong data-start=\"973\" data-end=\"983\">Bank 1<\/strong> \u2013 engine side containing cylinder 1<\/p>\n<\/li>\n<li data-section-id=\"j7vkct\" data-start=\"1022\" data-end=\"1094\">\n<p data-start=\"1024\" data-end=\"1094\"><strong data-start=\"1024\" data-end=\"1036\">Sensor 1<\/strong> \u2013 upstream <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0134-code-o2-sensor-circuit-no-activity-detected\/\">oxygen sensor<\/a> before the catalytic converter<\/p>\n<\/li>\n<li data-section-id=\"pmmdz8\" data-start=\"1095\" data-end=\"1166\">\n<p data-start=\"1097\" data-end=\"1166\"><strong data-start=\"1097\" data-end=\"1109\">Sensor 2<\/strong> \u2013 downstream <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0134-code-o2-sensor-circuit-no-activity-detected\/\">oxygen sensor<\/a> after the catalytic converter<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1168\" data-end=\"1281\">The downstream sensor mainly monitors <strong data-start=\"1206\" data-end=\"1241\">catalytic converter performance<\/strong> rather than adjusting the fuel mixture.<\/p>\n<hr data-start=\"1283\" data-end=\"1286\" \/>\n<h2 data-section-id=\"3j8v5d\" data-start=\"1288\" data-end=\"1321\">Common Causes of the P0137 Code<\/h2>\n<p data-start=\"1323\" data-end=\"1367\">Several problems may trigger the P0137 code.<\/p>\n<h3 data-section-id=\"4i363l\" data-start=\"1369\" data-end=\"1393\">Faulty oxygen sensor<\/h3>\n<p data-start=\"1394\" data-end=\"1460\">A worn or damaged <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0134-code-o2-sensor-circuit-no-activity-detected\/\">oxygen sensor<\/a> may produce a weak voltage signal.<\/p>\n<h3 data-section-id=\"uwnaj4\" data-start=\"1462\" data-end=\"1479\">Exhaust leaks<\/h3>\n<p data-start=\"1480\" data-end=\"1556\">Leaks near the <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0134-code-o2-sensor-circuit-no-activity-detected\/\">oxygen sensor<\/a> may allow extra oxygen into the <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/exhaust-smoke-colors\/\">exhaust<\/a> stream.<\/p>\n<h3 data-section-id=\"1blu1vp\" data-start=\"1558\" data-end=\"1576\">Damaged wiring<\/h3>\n<p data-start=\"1577\" data-end=\"1639\">Broken wires or corroded connectors may reduce sensor voltage.<\/p>\n<h3 data-section-id=\"191nt8w\" data-start=\"1641\" data-end=\"1671\">Catalytic converter issues<\/h3>\n<p data-start=\"1672\" data-end=\"1740\">A failing catalytic converter may affect downstream sensor readings.<\/p>\n<h3 data-section-id=\"18o280e\" data-start=\"1742\" data-end=\"1767\">Fuel mixture problems<\/h3>\n<p data-start=\"1768\" data-end=\"1825\">An excessively lean mixture may cause low sensor voltage.<\/p>\n<hr data-start=\"1827\" data-end=\"1830\" \/>\n<h2 data-section-id=\"1ulv6bg\" data-start=\"1832\" data-end=\"1860\">Symptoms of the P0137 Code<\/h2>\n<p data-start=\"1862\" data-end=\"1898\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-freezes-randomly-causes-and-fix\/\">Drivers<\/a> may notice several symptoms.<\/p>\n<p data-start=\"1900\" data-end=\"1921\">Common signs include:<\/p>\n<ul data-start=\"1923\" data-end=\"2021\">\n<li data-section-id=\"whrhy6\" data-start=\"1923\" data-end=\"1945\">\n<p data-start=\"1925\" data-end=\"1945\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/%e2%9a%99%ef%b8%8f-faulty-maf-sensor-symptoms-causes-fixes\/\">Check Engine<\/a> Light<\/p>\n<\/li>\n<li data-section-id=\"17lk8g1\" data-start=\"1946\" data-end=\"1973\">\n<p data-start=\"1948\" data-end=\"1973\">reduced fuel efficiency<\/p>\n<\/li>\n<li data-section-id=\"1fsihf6\" data-start=\"1974\" data-end=\"1997\">\n<p data-start=\"1976\" data-end=\"1997\">increased <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/wet-vs-dry-timing-belt-what-drivers-must-know\/\">emissions<\/a><\/p>\n<\/li>\n<li data-section-id=\"jchofb\" data-start=\"1998\" data-end=\"2021\">\n<p data-start=\"2000\" data-end=\"2021\">failed <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/wet-vs-dry-timing-belt-what-drivers-must-know\/\">emissions<\/a> test<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2023\" data-end=\"2085\">In most cases, <strong data-start=\"2038\" data-end=\"2084\">engine performance is not heavily affected<\/strong>.<\/p>\n<hr data-start=\"2087\" data-end=\"2090\" \/>\n<h2 data-section-id=\"15urs5g\" data-start=\"2092\" data-end=\"2115\">How to Diagnose P0137<\/h2>\n<p data-start=\"2117\" data-end=\"2162\">Diagnosing this issue requires several steps.<\/p>\n<h3 data-section-id=\"13znv0o\" data-start=\"2164\" data-end=\"2193\">Step 1 \u2013 Scan the vehicle<\/h3>\n<p data-start=\"2194\" data-end=\"2278\">Confirm the <strong data-start=\"2206\" data-end=\"2220\">P0137 code<\/strong> with an <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0229-code-throttle-pedal-position-sensor-c-intermittent\/\">OBD2<\/a> scanner and check for related <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/obd2-winter-codes-what-they-mean-and-why-they-appear\/\">codes<\/a> such as:<\/p>\n<ul data-start=\"2280\" data-end=\"2317\">\n<li data-section-id=\"1sx3vj0\" data-start=\"2280\" data-end=\"2289\">\n<p data-start=\"2282\" data-end=\"2289\">P0136<\/p>\n<\/li>\n<li data-section-id=\"1sx3n4i\" data-start=\"2290\" data-end=\"2299\">\n<p data-start=\"2292\" data-end=\"2299\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0138-code-o2-sensor-circuit-high-voltage\/\">P0138<\/a><\/p>\n<\/li>\n<li data-section-id=\"1sx7mv1\" data-start=\"2300\" data-end=\"2309\">\n<p data-start=\"2302\" data-end=\"2309\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0140-code-o2-sensor-circuit-no-activity-detected\/\">P0140<\/a><\/p>\n<\/li>\n<li data-section-id=\"1769d8e\" data-start=\"2310\" data-end=\"2317\">\n<p data-start=\"2312\" data-end=\"2317\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0420-code-opel-real-causes-quick-fixes\/\">P0420<\/a><\/p>\n<\/li>\n<\/ul>\n<h3 data-section-id=\"8nldpq\" data-start=\"2319\" data-end=\"2357\">Step 2 \u2013 Inspect the oxygen sensor<\/h3>\n<p data-start=\"2358\" data-end=\"2423\">Check the <strong data-start=\"2368\" data-end=\"2387\">Bank 1 Sensor 2<\/strong> sensor for contamination or damage.<\/p>\n<h3 data-section-id=\"66wjh1\" data-start=\"2425\" data-end=\"2467\">Step 3 \u2013 Inspect wiring and connectors<\/h3>\n<p data-start=\"2468\" data-end=\"2521\">Look for loose connectors, broken wires or corrosion.<\/p>\n<h3 data-section-id=\"wulvix\" data-start=\"2523\" data-end=\"2553\">Step 4 \u2013 Monitor live data<\/h3>\n<p data-start=\"2554\" data-end=\"2638\">Using a scan tool, monitor downstream <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0134-code-o2-sensor-circuit-no-activity-detected\/\">oxygen sensor<\/a> voltage during engine operation.<\/p>\n<hr data-start=\"2640\" data-end=\"2643\" \/>\n<h2 data-section-id=\"19740db\" data-start=\"2645\" data-end=\"2673\">Repair Solutions for P0137<\/h2>\n<p data-start=\"2675\" data-end=\"2708\">Typical repair solutions include:<\/p>\n<ul data-start=\"2710\" data-end=\"2839\">\n<li data-section-id=\"1uom0bm\" data-start=\"2710\" data-end=\"2752\">\n<p data-start=\"2712\" data-end=\"2752\">replacing the downstream <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0134-code-o2-sensor-circuit-no-activity-detected\/\">oxygen sensor<\/a><\/p>\n<\/li>\n<li data-section-id=\"bedut2\" data-start=\"2753\" data-end=\"2781\">\n<p data-start=\"2755\" data-end=\"2781\">repairing damaged wiring<\/p>\n<\/li>\n<li data-section-id=\"was7qh\" data-start=\"2782\" data-end=\"2806\">\n<p data-start=\"2784\" data-end=\"2806\">fixing <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/exhaust-smoke-colors\/\">exhaust<\/a> leaks<\/p>\n<\/li>\n<li data-section-id=\"dm7dlw\" data-start=\"2807\" data-end=\"2839\">\n<p data-start=\"2809\" data-end=\"2839\">addressing fuel mixture issues<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2841\" data-end=\"2898\">Most cases are solved by <strong data-start=\"2866\" data-end=\"2897\">replacing the <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0134-code-o2-sensor-circuit-no-activity-detected\/\">oxygen sensor<\/a><\/strong>.<\/p>\n<hr data-start=\"2900\" data-end=\"2903\" \/>\n<h2 data-section-id=\"1w7oyxu\" data-start=\"2905\" data-end=\"2928\">Estimated Repair Cost<\/h2>\n<p data-start=\"2930\" data-end=\"2959\">Typical repair costs include:<\/p>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"2961\" data-end=\"3111\">\n<thead data-start=\"2961\" data-end=\"2988\">\n<tr data-start=\"2961\" data-end=\"2988\">\n<th class=\"\" data-start=\"2961\" data-end=\"2970\" data-col-size=\"sm\">Repair<\/th>\n<th class=\"\" data-start=\"2970\" data-end=\"2988\" data-col-size=\"sm\">Estimated Cost<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"3005\" data-end=\"3111\">\n<tr data-start=\"3005\" data-end=\"3046\">\n<td data-start=\"3005\" data-end=\"3031\" data-col-size=\"sm\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0134-code-o2-sensor-circuit-no-activity-detected\/\">Oxygen sensor<\/a> replacement<\/td>\n<td data-start=\"3031\" data-end=\"3046\" data-col-size=\"sm\">$120 \u2013 $350<\/td>\n<\/tr>\n<tr data-start=\"3047\" data-end=\"3075\">\n<td data-start=\"3047\" data-end=\"3061\" data-col-size=\"sm\">Wiring repair<\/td>\n<td data-start=\"3061\" data-end=\"3075\" data-col-size=\"sm\">$80 \u2013 $250<\/td>\n<\/tr>\n<tr data-start=\"3076\" data-end=\"3111\">\n<td data-start=\"3076\" data-end=\"3096\" data-col-size=\"sm\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/exhaust-smoke-colors\/\">Exhaust<\/a> leak repair<\/td>\n<td data-start=\"3096\" data-end=\"3111\" data-col-size=\"sm\">$150 \u2013 $400<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"3113\" data-end=\"3116\" \/>\n<h2 data-section-id=\"i7dd33\" data-start=\"3118\" data-end=\"3149\">Can You Drive With Code P0137<\/h2>\n<p data-start=\"3151\" data-end=\"3212\">Driving with <strong data-start=\"3164\" data-end=\"3173\">P0137<\/strong> is usually possible for short periods.<\/p>\n<p data-start=\"3214\" data-end=\"3256\">However, ignoring the problem may lead to:<\/p>\n<ul data-start=\"3258\" data-end=\"3339\">\n<li data-section-id=\"deyh1n\" data-start=\"3258\" data-end=\"3278\">\n<p data-start=\"3260\" data-end=\"3278\">higher <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/wet-vs-dry-timing-belt-what-drivers-must-know\/\">emissions<\/a><\/p>\n<\/li>\n<li data-section-id=\"1nhbef3\" data-start=\"3279\" data-end=\"3309\">\n<p data-start=\"3281\" data-end=\"3309\">catalytic converter damage<\/p>\n<\/li>\n<li data-section-id=\"v9a28f\" data-start=\"3310\" data-end=\"3339\">\n<p data-start=\"3312\" data-end=\"3339\">failed <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/wet-vs-dry-timing-belt-what-drivers-must-know\/\">emissions<\/a> inspection<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3341\" data-end=\"3385\">Repairing the issue promptly is recommended.<\/p>\n<hr data-start=\"3387\" data-end=\"3390\" \/>\n<h2 data-section-id=\"r3fftn\" data-start=\"3392\" data-end=\"3410\">FAQ \u2013 P0137 Code<\/h2>\n<h3 data-section-id=\"oqeg3n\" data-start=\"3412\" data-end=\"3436\">What does P0137 mean<\/h3>\n<p data-start=\"3437\" data-end=\"3524\">The <strong data-start=\"3441\" data-end=\"3455\">P0137 code<\/strong> indicates <strong data-start=\"3466\" data-end=\"3523\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/obd2-winter-codes-what-they-mean-and-why-they-appear\/\">low voltage<\/a> from the downstream <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0134-code-o2-sensor-circuit-no-activity-detected\/\">oxygen sensor<\/a> circuit<\/strong>.<\/p>\n<h3 data-section-id=\"15pmy7n\" data-start=\"3526\" data-end=\"3561\">Can a bad O2 sensor cause P0137<\/h3>\n<p data-start=\"3562\" data-end=\"3626\">Yes. A faulty downstream <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0134-code-o2-sensor-circuit-no-activity-detected\/\">oxygen sensor<\/a> is the most common cause.<\/p>\n<h3 data-section-id=\"1o2u7h\" data-start=\"3628\" data-end=\"3648\">Is P0137 serious<\/h3>\n<p data-start=\"3649\" data-end=\"3725\">It is usually <strong data-start=\"3663\" data-end=\"3685\">moderately serious<\/strong>, mainly affecting <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/wet-vs-dry-timing-belt-what-drivers-must-know\/\">emissions<\/a> monitoring.<\/p>\n<h3 data-section-id=\"7ikbvg\" data-start=\"3727\" data-end=\"3751\">How do you fix P0137<\/h3>\n<p data-start=\"3752\" data-end=\"3830\">Start by checking the <strong data-start=\"3774\" data-end=\"3829\">downstream <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0134-code-o2-sensor-circuit-no-activity-detected\/\">oxygen sensor<\/a> and its wiring connections<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P0137 diagnostic trouble code (DTC) indicates that the Engine Control Unit (ECU) has detected a low voltage signal from the oxygen sensor on Bank 1 Sensor 2. The downstream oxygen sensor (Sensor 2) is located after the catalytic converter and is used to monitor catalytic converter efficiency and emissions performance. When the ECU detects [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10039,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[45415],"tags":[36299,36841,36339,45999,46001,45463,46017,46005],"class_list":["post-39757","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-obd2-en","tag-bam","tag-car-diagnostics","tag-diagnoza","tag-engine-codes","tag-obd2","tag-obd2-code","tag-p0137","tag-powertrain"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.2 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>P0137 Code \u2013 O2 Sensor Circuit Low Voltage - Diagnoza BAM<\/title>\n<meta name=\"description\" content=\"What does P0137 mean? 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The third sensor is typically located after the catalytic converter system and is used to monitor exhaust emissions\u2026","rel":"","context":"\u00cen \u201eOBD2-EN\u201d","block_context":{"text":"OBD2-EN","link":"https:\/\/diagnozabam.ro\/sfaturi\/category\/obd2-en\/"},"img":{"alt_text":"lista completa coduri de eroare opel astra h zafira b td cdti mfrh original","src":"https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2024\/02\/lista-completa-coduri-de-eroare-opel-astra-h-zafira-b-td-cdti-mfrh-original.webp?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":40131,"url":"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0157-code-o2-sensor-circuit-low-voltage\/","url_meta":{"origin":39757,"position":3},"title":"P0157 Code \u2013 O2 Sensor Circuit Low Voltage","author":"Bejenaru Alexandru Ionut","date":"28 martie 2026","format":false,"excerpt":"The P0157 diagnostic trouble code indicates that the Engine Control Unit (ECU) has detected a low voltage signal from the oxygen (O2) sensor located on Bank 2 Sensor 2. This sensor is positioned downstream of the catalytic converter and is used to monitor catalytic converter efficiency. Under normal conditions, the\u2026","rel":"","context":"\u00cen \u201eOBD2-EN\u201d","block_context":{"text":"OBD2-EN","link":"https:\/\/diagnozabam.ro\/sfaturi\/category\/obd2-en\/"},"img":{"alt_text":"lista completa coduri de eroare opel astra h zafira b td cdti mfrh original","src":"https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2024\/02\/lista-completa-coduri-de-eroare-opel-astra-h-zafira-b-td-cdti-mfrh-original.webp?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":39751,"url":"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0132-code-o2-sensor-circuit-high-voltage\/","url_meta":{"origin":39757,"position":4},"title":"P0132 Code \u2013 O2 Sensor Circuit High Voltage","author":"Bejenaru Alexandru Ionut","date":"24 martie 2026","format":false,"excerpt":"The P0132 diagnostic trouble code (DTC) indicates that the Engine Control Unit (ECU) has detected an abnormally high voltage signal from the oxygen sensor circuit on Bank 1 Sensor 1. The oxygen sensor (O2 sensor) measures oxygen levels in exhaust gases and helps the ECU regulate the air-fuel mixture. When\u2026","rel":"","context":"\u00cen \u201eOBD2-EN\u201d","block_context":{"text":"OBD2-EN","link":"https:\/\/diagnozabam.ro\/sfaturi\/category\/obd2-en\/"},"img":{"alt_text":"lista completa coduri de eroare opel astra h zafira b td cdti mfrh original","src":"https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2024\/02\/lista-completa-coduri-de-eroare-opel-astra-h-zafira-b-td-cdti-mfrh-original.webp?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":40133,"url":"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0158-code-o2-sensor-circuit-high-voltage\/","url_meta":{"origin":39757,"position":5},"title":"P0158 Code \u2013 O2 Sensor Circuit High Voltage","author":"Bejenaru Alexandru Ionut","date":"28 martie 2026","format":false,"excerpt":"The P0158 diagnostic trouble code indicates that the Engine Control Unit (ECU) has detected a high voltage signal from the oxygen (O2) sensor located on Bank 2 Sensor 2. This sensor is positioned downstream of the catalytic converter and is used to monitor catalytic converter efficiency. Under normal conditions, the\u2026","rel":"","context":"\u00cen \u201eOBD2-EN\u201d","block_context":{"text":"OBD2-EN","link":"https:\/\/diagnozabam.ro\/sfaturi\/category\/obd2-en\/"},"img":{"alt_text":"lista completa coduri de eroare opel astra h zafira b td cdti mfrh original","src":"https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2024\/02\/lista-completa-coduri-de-eroare-opel-astra-h-zafira-b-td-cdti-mfrh-original.webp?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"jetpack_likes_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/pf97go-alf","jetpack_sharing_enabled":true,"pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/posts\/39757","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/comments?post=39757"}],"version-history":[{"count":1,"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/posts\/39757\/revisions"}],"predecessor-version":[{"id":39758,"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/posts\/39757\/revisions\/39758"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/media\/10039"}],"wp:attachment":[{"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/media?parent=39757"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/categories?post=39757"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/tags?post=39757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}