{"id":287667,"date":"2024-10-23T08:01:48","date_gmt":"2024-10-23T08:01:48","guid":{"rendered":"https:\/\/www.ziptuning.com\/zh\/?p=287667"},"modified":"2024-11-04T10:38:54","modified_gmt":"2024-11-04T10:38:54","slug":"p20b9-reductant-heater-control-circuit-open","status":"publish","type":"post","link":"https:\/\/www.ziptuning.com\/zh\/blog\/p20b9-reductant-heater-control-circuit-open\/","title":{"rendered":"P20B9 &#8211; \u8fd8\u539f\u52a0\u70ed\u5668\u63a7\u5236\u7535\u8def\u5f00\u8def"},"content":{"rendered":"<h2 id=\"understanding-obd-ii-code-p20b9-reductant-heater-a-control-circuit-open\">\u4e86\u89e3 OBD-II \u4ee3\u7801 P20B9\uff1a\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u201cA\u201d\u63a7\u5236\u7535\u8def\/\u5f00\u8def<\/h2>\n<p>P20B9 \u8bca\u65ad\u6545\u969c\u4ee3\u7801 (DTC) \u8868\u793a\u67f4\u6cb9\u53d1\u52a8\u673a\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f (SCR) \u7cfb\u7edf\u4e2d\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u63a7\u5236\u7535\u8def\u5b58\u5728\u95ee\u9898\u3002\u672c\u6587\u63d0\u4f9b\u4e86\u8be5\u4ee3\u7801\u7684\u6df1\u5165\u5206\u6790\u3001\u5f71\u54cd\u53ca\u7ef4\u4fee\u7a0b\u5e8f\u3002<\/p>\n<div class=\"workshop-experience-text\">\n<p>\u5728\u6211\u4eec\u7684\u8f66\u95f4\uff0c\u6211\u4eec\u7ecf\u5e38\u770b\u5230 P20B9 \u4ee3\u7801\u51fa\u73b0\u5728\u5404\u79cd\u6b27\u6d32\u67f4\u6cb9\u8f66\u8f86\u4e2d\uff0c\u5c24\u5176\u662f\u6885\u8d5b\u5fb7\u65af-\u5954\u9a70\u3001\u5b9d\u9a6c\u548c\u5927\u4f17\u8f66\u578b\u3002\u6211\u4eec\u6ce8\u610f\u5230\u5b83\u5728 2015-2019 \u5e74\u7684\u6885\u8d5b\u5fb7\u65af Sprinter \u9762\u5305\u8f66\u548c\u5b9d\u9a6c 3 \u7cfb\u67f4\u6cb9\u8f66\u4e2d\u5c24\u5176\u5e38\u89c1\u3002\u95ee\u9898\u901a\u5e38\u6e90\u4e8e\u6545\u969c\u7684\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u6216 SCR \u7cfb\u7edf\u4e2d\u7684\u63a5\u7ebf\u95ee\u9898\u3002\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u901a\u8fc7\u66f4\u6362 DEF \u52a0\u70ed\u5668\u6216\u4fee\u7406\u635f\u574f\u7684\u7ebf\u675f\u89e3\u51b3\u4e86\u95ee\u9898\u3002\u6709\u8da3\u7684\u662f\uff0c\u6211\u4eec\u53d1\u73b0\u751f\u6d3b\u5728\u5bd2\u51b7\u6c14\u5019\u4e2d\u7684\u8f66\u8f86\u66f4\u5bb9\u6613\u51fa\u73b0\u6b64\u95ee\u9898\uff0c\u8fd9\u53ef\u80fd\u662f\u7531\u4e8e\u52a0\u70ed\u5143\u4ef6\u627f\u53d7\u7684\u538b\u529b\u589e\u52a0\u3002\u867d\u7136\u7ef4\u4fee\u53ef\u80fd\u8f83\u4e3a\u6602\u8d35\uff0c\u4f46\u53ca\u65f6\u5904\u7406\u81f3\u5173\u91cd\u8981\uff0c\u4ee5\u9632\u6b62 SCR \u7cfb\u7edf\u53d7\u635f\u5e76\u907f\u514d\u8fdb\u5165\u762b\u75ea\u6a21\u5f0f\u7684\u60c5\u51b5\u3002<\/p>\n<\/div>\n<h2 id=\"severity-and-drivability\">\u4e25\u91cd\u6027\u548c\u53ef\u9a7e\u9a76\u6027<\/h2>\n<p>P20B9 \u88ab\u89c6\u4e3a\u4e25\u91cd\u95ee\u9898\uff0c\u9700\u7acb\u5373\u5904\u7406\u3002\u867d\u7136\u5728\u8f83\u6e29\u6696\u7684\u6761\u4ef6\u4e0b\u8f66\u8f86\u4ecd\u7136\u53ef\u4ee5\u9a7e\u9a76\uff0c\u4f46\u7ee7\u7eed\u64cd\u4f5c\u53ef\u80fd\u4f1a\u5bfc\u81f4\uff1a<\/p>\n<ol>\n<li>\u53d1\u52a8\u673a\u6027\u80fd\u4e0b\u964d<\/li>\n<li>\u8fc7\u591a\u7684\u9ed1\u8272\u6392\u6c14\u70df\u96fe<\/li>\n<li>\u71c3\u6cb9\u6548\u7387\u4e0b\u964d<\/li>\n<li>SCR \u7cfb\u7edf\u548c\u50ac\u5316\u8f6c\u6362\u5668\u53ef\u80fd\u53d7\u635f<\/li>\n<\/ol>\n<p>\u5728\u5bd2\u51b7\u6c14\u5019\u4e0b\uff0c\u98ce\u9669\u663e\u8457\u589e\u52a0\uff0c\u56e0\u4e3a\u67f4\u6cb9\u6392\u6c14\u6db2 (DEF) \u53ef\u80fd\u4f1a\u51bb\u7ed3\uff0c\u5bfc\u81f4 DEF \u7bb1\u4e25\u91cd\u53d7\u635f\u3002<\/p>\n<h2 id=\"code-specifics\">\u4ee3\u7801\u8be6\u60c5<\/h2>\n<p>P20B9 \u662f\u4e00\u4e2a\u9002\u7528\u4e8e 1996 \u5e74\u4ee5\u540e\u5236\u9020\u7684\u5404\u79cd\u67f4\u6cb9 OBD-II \u8f66\u8f86\u7684\u901a\u7528\u52a8\u529b\u603b\u6210\u4ee3\u7801\u3002\u5b83\u7279\u522b\u6307\u7684\u662f\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u201cA\u201d\u63a7\u5236\u7cfb\u7edf\u4e2d\u7684\u5f00\u8def\u3002\u8be5\u4ee3\u7801\u901a\u5e38\u51fa\u73b0\u5728\u914d\u5907 SCR \u7cfb\u7edf\u7684\u8f66\u8f86\u4e2d\uff0c\u5305\u62ec\u798f\u7279\u3001\u6885\u8d5b\u5fb7\u65af-\u5954\u9a70\u3001\u5965\u8fea\u3001RAM\u3001\u96ea\u4f5b\u5170\u548c\u5b9d\u9a6c\u7b49\u54c1\u724c\u3002<\/p>\n<h2 id=\"scr-system-overview\">SCR \u7cfb\u7edf\u6982\u8ff0<\/h2>\n<p>\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f (SCR) \u7cfb\u7edf\u662f\u4e00\u79cd\u5148\u8fdb\u7684\u6392\u653e\u63a7\u5236\u6280\u672f\uff0c\u53ef\u51cf\u5c11\u67f4\u6cb9\u53d1\u52a8\u673a\u4e2d\u7684\u6c2e\u6c27\u5316\u7269 (NOx) \u6392\u653e\u3002\u5b83\u901a\u8fc7\u5c06 DEF \u6ce8\u5165\u6392\u6c14\u6d41\u4e2d\uff0cDEF \u4e0e NOx \u5728\u50ac\u5316\u5242\u7684\u4f5c\u7528\u4e0b\u53d1\u751f\u53cd\u5e94\uff0c\u8f6c\u5316\u4e3a\u65e0\u5bb3\u7684\u6c2e\u6c14\u548c\u6c34\u3002<\/p>\n<h3 id=\"role-of-the-reductant-heater\">\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u7684\u4f5c\u7528<\/h3>\n<p>\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u5728\u4fdd\u6301 DEF \u5904\u4e8e\u6700\u4f73\u6e29\u5ea6\uff08\u901a\u5e38\u7ea6 32\u00b0C \u6216 89.6\u00b0F\uff09\u4e2d\u8d77\u7740\u5173\u952e\u4f5c\u7528\u3002\u8fd9\u9632\u6b62\u4e86 DEF \u5728\u5bd2\u51b7\u6761\u4ef6\u4e0b\u51bb\u7ed3\uff0c\u5e76\u786e\u4fdd SCR \u7cfb\u7edf\u7684\u9ad8\u6548\u8fd0\u884c\u3002<\/p>\n<h2 id=\"components-involved\">\u6d89\u53ca\u7684\u7ec4\u4ef6<\/h2>\n<ol>\n<li>\u8fd8\u539f\u5242\u52a0\u70ed\u5668\uff1a\u901a\u5e38\u4f4d\u4e8e DEF \u7bb1\u5185<\/li>\n<li>\u52a8\u529b\u603b\u6210\u63a7\u5236\u6a21\u5757 (PCM)<\/li>\n<li>SCR \u63a7\u5236\u5668<\/li>\n<li>\u7ebf\u675f\u548c\u8fde\u63a5\u5668<\/li>\n<li>\u63a7\u5236\u7535\u8def\u4e2d\u7684\u4fdd\u9669\u4e1d\u548c\u7ee7\u7535\u5668<\/li>\n<\/ol>\n<h2 id=\"common-causes-of-p20b9\">P20B9 \u7684\u5e38\u89c1\u539f\u56e0<\/h2>\n<ol>\n<li>\u6545\u969c\u7684\u8fd8\u539f\u5242\u52a0\u70ed\u5668<\/li>\n<li>\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u63a7\u5236\u63a5\u7ebf\u4e2d\u7684\u5f00\u8def\u6216\u77ed\u8def<\/li>\n<li>\u635f\u574f\u7684\u8fd8\u539f\u5242\u6e29\u5ea6\u4f20\u611f\u5668<\/li>\n<li>SCR \u63a7\u5236\u5668\u6216 PCM \u6545\u969c<\/li>\n<li>PCM \u6216 SCR \u63a7\u5236\u5668\u4e2d\u7684\u7f16\u7a0b\u9519\u8bef<\/li>\n<\/ol>\n<h2 id=\"diagnostic-procedure\">\u8bca\u65ad\u6b65\u9aa4<\/h2>\n<p>\u8981\u8bca\u65ad P20B9\uff0c\u60a8\u9700\u8981\uff1a<\/p>\n<ul>\n<li>OBD-II \u626b\u63cf\u4eea<\/li>\n<li>\u6570\u5b57\u7535\u538b\/\u6b27\u59c6\u8868 (DVOM)<\/li>\n<li>\u8f66\u8f86\u7279\u5b9a\u7684\u63a5\u7ebf\u56fe\u548c\u89c4\u683c<\/li>\n<\/ul>\n<p>\u6b65\u9aa4\uff1a<\/p>\n<ol>\n<li>\u5bf9\u8fd8\u539f\u5242\u52a0\u70ed\u7cfb\u7edf\u7684\u63a5\u7ebf\u548c\u8fde\u63a5\u5668\u8fdb\u884c\u76ee\u89c6\u68c0\u67e5\u3002<\/li>\n<li>\u4f7f\u7528\u626b\u63cf\u4eea\u68c0\u7d22\u6240\u6709\u5b58\u50a8\u7684 DTC \u548c\u51bb\u7ed3\u5e27\u6570\u636e\u3002<\/li>\n<li>\u6e05\u9664\u4ee3\u7801\u5e76\u8bd5\u9a7e\u8f66\u8f86\uff0c\u770b\u770b\u4ee3\u7801\u662f\u5426\u91cd\u65b0\u8bbe\u7f6e\u3002<\/li>\n<li>\u5982\u679c\u4ee3\u7801\u91cd\u73b0\uff0c\u4f7f\u7528 DVOM \u6d4b\u8bd5 SCR \u63a7\u5236\u7cfb\u7edf\u7684\u7535\u6e90\u3002<\/li>\n<li>\u5728\u8d1f\u8f7d\u4e0b\u68c0\u67e5\u4fdd\u9669\u4e1d\uff0c\u4ee5\u907f\u514d\u8bef\u8bca\u3002<\/li>\n<li>\u4f7f\u7528\u626b\u63cf\u4eea\u6fc0\u6d3b\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u5e76\u6d4b\u8bd5\u8f93\u51fa\u63a7\u5236\u7535\u8def\u7535\u538b\u3002<\/li>\n<li>\u5982\u679c\u8f93\u51fa\u7535\u538b\u5728\u89c4\u683c\u8303\u56f4\u5185\uff0c\u5219\u6d4b\u8bd5\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u5143\u4ef6\u7684\u7535\u963b\u3002<\/li>\n<\/ol>\n<h2 id=\"repair-options\">\u7ef4\u4fee\u9009\u9879<\/h2>\n<ol>\n<li>\u66f4\u6362\u6545\u969c\u7684\u8fd8\u539f\u5242\u52a0\u70ed\u5668<\/li>\n<li>\u4fee\u7406\u6216\u66f4\u6362\u635f\u574f\u7684\u63a5\u7ebf\u548c\u8fde\u63a5\u5668<\/li>\n<li>\u5982\u679c\u68c0\u6d4b\u5230\u7f16\u7a0b\u9519\u8bef\uff0c\u5219\u66f4\u65b0 PCM \u6216 SCR \u63a7\u5236\u5668\u8f6f\u4ef6<\/li>\n<li>\u5982\u6709\u5fc5\u8981\uff0c\u66f4\u6362\u635f\u574f\u7684 SCR \u63a7\u5236\u5668\u6216 PCM<\/li>\n<\/ol>\n<h2 id=\"prevention-strategies\">\u9884\u9632\u7b56\u7565<\/h2>\n<ol>\n<li>\u4f7f\u7528\u9ad8\u8d28\u91cf\u7684 DEF\uff0c\u5e76\u9075\u5faa\u6b63\u786e\u7684\u52a0\u6ce8\u7a0b\u5e8f<\/li>\n<li>\u5b9a\u671f\u7ef4\u62a4 SCR \u7cfb\u7edf<\/li>\n<li>\u53ca\u65f6\u5904\u7406\u4efb\u4f55 SCR \u76f8\u5173\u7684\u8b66\u544a\u706f\u6216\u4ee3\u7801<\/li>\n<\/ol>\n<h2 id=\"cost-analysis\">\u6210\u672c\u5206\u6790<\/h2>\n<p>\u7ef4\u4fee\u8d39\u7528\u56e0\u5177\u4f53\u95ee\u9898\u548c\u8f66\u8f86\u578b\u53f7\u800c\u5f02\uff1a<\/p>\n<ul>\n<li>\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u66f4\u6362\uff1a500-1500 \u7f8e\u5143\uff08\u20ac420-\u20ac1260 EUR\uff09<\/li>\n<li>\u63a5\u7ebf\u4fee\u7406\uff1a100-300 \u7f8e\u5143\uff08\u20ac85-\u20ac250 EUR\uff09<\/li>\n<li>PCM \u66f4\u6362\uff1a500-2000 \u7f8e\u5143\uff08\u20ac420-\u20ac1680 EUR\uff09<\/li>\n<\/ul>\n<p>\u7ecf\u9500\u5546\u7684\u4ef7\u683c\u901a\u5e38\u6bd4\u72ec\u7acb\u4fee\u7406\u5e97\u9ad8\u51fa 20-30%\u3002<\/p>\n<h2 id=\"related-issues-and-fault-codes\">\u76f8\u5173\u95ee\u9898\u548c\u6545\u969c\u4ee3\u7801<\/h2>\n<p>P20B9 \u53ef\u80fd\u4f34\u968f\u7740\u5176\u4ed6 SCR \u7cfb\u7edf\u4ee3\u7801\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p20ba-reductant-heater-control-circuit-low\/\" title=\"P20BA\uff1a\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u201cB\u201d\u63a7\u5236\u7535\u8def\/\u5f00\u8def\">P20BA\uff1a\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u201cB\u201d\u63a7\u5236\u7535\u8def\/\u5f00\u8def<\/a><\/li>\n<li><a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p20bb-reductant-heater-control-circuit-high\/\" title=\"P20BB\uff1a\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u201cC\u201d\u63a7\u5236\u7535\u8def\/\u5f00\u8def\">P20BB\uff1a\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u201cC\u201d\u63a7\u5236\u7535\u8def\/\u5f00\u8def<\/a><\/li>\n<li><a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p203f-reductant-dosing-valve-calibration-values-not-learned\/\" title=\"P203F\uff1a\u8fd8\u539f\u5242\u6db2\u4f4d\u8fc7\u4f4e\">P203F\uff1a\u8fd8\u539f\u5242\u6db2\u4f4d\u8fc7\u4f4e<\/a><\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u4ee3\u7801\u901a\u5e38\u8868\u660e SCR \u7cfb\u7edf\u4e2d\u5b58\u5728\u66f4\u5e7f\u6cdb\u7684\u95ee\u9898\uff0c\u5e94\u8fdb\u884c\u5168\u9762\u8bca\u65ad\u3002<\/p>\n<h2 id=\"p20b9-diagnostic-trouble-code-faq\">\u5173\u4e8e P20B9 \u8bca\u65ad\u6545\u969c\u4ee3\u7801\u7684\u5e38\u89c1\u95ee\u9898<\/h2>\n<h3>P20B9 \u4ee3\u7801\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/h3>\n<p>P20B9 \u8868\u793a\u67f4\u6cb9\u53d1\u52a8\u673a\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f (SCR) \u7cfb\u7edf\u4e2d\u7684\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u201cA\u201d\u63a7\u5236\u7535\u8def\/\u5f00\u8def\u3002<\/p>\n<h3>\u5904\u7406 P20B9 \u4ee3\u7801\u7684\u7d27\u6025\u6027\u6709\u591a\u5927\uff1f<\/h3>\n<p>\u8be5\u95ee\u9898\u88ab\u8ba4\u4e3a\u662f\u4e25\u91cd\u7684\uff0c\u5e94\u53ca\u65f6\u5904\u7406\uff0c\u4ee5\u9632\u6b62 SCR \u7cfb\u7edf\u548c\u50ac\u5316\u8f6c\u6362\u5668\u53d7\u635f\u3002<\/p>\n<h3>\u5e26\u6709 P20B9 \u4ee3\u7801\u7684\u8f66\u8f86\u8fd8\u80fd\u7ee7\u7eed\u9a7e\u9a76\u5417\uff1f<\/h3>\n<p>\u867d\u7136\u5728\u8f83\u6e29\u6696\u7684\u6761\u4ef6\u4e0b\u8f66\u8f86\u53ef\u80fd\u4ecd\u80fd\u9a7e\u9a76\uff0c\u4f46\u5e76\u4e0d\u5efa\u8bae\u7ee7\u7eed\u9a7e\u9a76\uff0c\u7279\u522b\u662f\u5728\u5bd2\u51b7\u6c14\u5019\u4e0b\uff0cDEF \u51bb\u7ed3\u53ef\u80fd\u5bfc\u81f4\u4e25\u91cd\u635f\u574f\u3002<\/p>\n<h3>P20B9 \u4ee3\u7801\u7684\u5e38\u89c1\u75c7\u72b6\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u5e38\u89c1\u75c7\u72b6\u5305\u62ec\u53d1\u52a8\u673a\u6027\u80fd\u4e0b\u964d\u3001\u8fc7\u591a\u7684\u9ed1\u8272\u6392\u6c14\u70df\u96fe\u3001\u71c3\u6cb9\u6548\u7387\u4e0b\u964d\u4ee5\u53ca\u53d1\u52a8\u673a\u6545\u969c\u706f\u70b9\u4eae\u3002<\/p>\n<h3>\u54ea\u4e9b\u8f66\u8f86\u5e38\u89c1 P20B9 \u4ee3\u7801\uff1f<\/h3>\n<p>\u8be5\u4ee3\u7801\u53ef\u80fd\u51fa\u73b0\u5728\u798f\u7279\u3001\u6885\u8d5b\u5fb7\u65af-\u5954\u9a70\u3001\u5965\u8fea\u3001RAM\u3001\u96ea\u4f5b\u5170\u548c\u5b9d\u9a6c\u7b49\u5236\u9020\u5546\u751f\u4ea7\u7684\u5404\u79cd\u67f4\u6cb9 OBD-II \u8f66\u8f86\u4e2d\u3002<\/p>\n<h3>\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u5728 SCR \u7cfb\u7edf\u4e2d\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u4fdd\u6301 DEF \u6db2\u4f53\u5728\u5927\u7ea6 32\u00b0C\uff0889.6\u00b0F\uff09\u7684\u6700\u4f73\u6e29\u5ea6\uff0c\u4ee5\u9632\u6b62\u51bb\u7ed3\u5e76\u786e\u4fdd SCR \u7cfb\u7edf\u7684\u9ad8\u6548\u8fd0\u884c\u3002<\/p>\n<h3>P20B9 \u4ee3\u7801\u6d89\u53ca\u54ea\u4e9b\u4e3b\u8981\u7ec4\u4ef6\uff1f<\/h3>\n<p>\u5173\u952e\u7ec4\u4ef6\u5305\u62ec\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u3001\u52a8\u529b\u603b\u6210\u63a7\u5236\u6a21\u5757 (PCM)\u3001SCR \u63a7\u5236\u5668\u3001\u7ebf\u675f\u3001\u8fde\u63a5\u5668\u4ee5\u53ca\u76f8\u5173\u7684\u4fdd\u9669\u4e1d\u548c\u7ee7\u7535\u5668\u3002<\/p>\n<h3>P20B9 \u4ee3\u7801\u7684\u5e38\u89c1\u539f\u56e0\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u5e38\u89c1\u539f\u56e0\u5305\u62ec\u6545\u969c\u7684\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u3001\u5f00\u8def\u6216\u77ed\u8def\u3001\u635f\u574f\u7684\u6e29\u5ea6\u4f20\u611f\u5668\u3001SCR \u63a7\u5236\u5668\u6216 PCM \u6545\u969c\u4ee5\u53ca\u7f16\u7a0b\u9519\u8bef\u3002<\/p>\n<h3>\u8bca\u65ad P20B9 \u4ee3\u7801\u9700\u8981\u54ea\u4e9b\u5de5\u5177\uff1f<\/h3>\n<p>\u8bca\u65ad\u901a\u5e38\u9700\u8981 OBD-II \u626b\u63cf\u4eea\u3001\u6570\u5b57\u4e07\u7528\u8868\u4ee5\u53ca\u8f66\u8f86\u7279\u5b9a\u7684\u63a5\u7ebf\u56fe\u548c\u89c4\u683c\u3002<\/p>\n<h3>P20B9 \u4ee3\u7801\u662f\u5982\u4f55\u8bca\u65ad\u7684\uff1f<\/h3>\n<p>\u8bca\u65ad\u5305\u62ec\u76ee\u89c6\u68c0\u67e5\u3001\u68c0\u7d22\u548c\u5206\u6790 DTC\u3001\u6d4b\u8bd5\u7535\u6e90\u4f9b\u5e94\u548c\u63a7\u5236\u7535\u8def\uff0c\u4ee5\u53ca\u68c0\u67e5\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u5143\u4ef6\u7684\u7535\u963b\u3002<\/p>\n<h3>P20B9 \u4ee3\u7801\u53ef\u4ee5\u5728\u5bb6\u4fee\u590d\u5417\uff1f<\/h3>\n<p>\u867d\u7136\u7ecf\u9a8c\u4e30\u5bcc\u7684 DIY \u7231\u597d\u8005\u53ef\u80fd\u80fd\u591f\u5b8c\u6210\u4e00\u4e9b\u7ef4\u4fee\uff0c\u4f46\u7531\u4e8e SCR \u7cfb\u7edf\u7684\u590d\u6742\u6027\uff0c\u5efa\u8bae\u7531\u4e13\u4e1a\u4eba\u5458\u8fdb\u884c\u8bca\u65ad\u548c\u7ef4\u4fee\u3002<\/p>\n<h3>P20B9 \u4ee3\u7801\u7684\u6f5c\u5728\u7ef4\u4fee\u9009\u9879\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u7ef4\u4fee\u53ef\u80fd\u5305\u62ec\u66f4\u6362\u6545\u969c\u7684\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u3001\u4fee\u7406\u63a5\u7ebf\u3001\u66f4\u65b0 PCM \u6216 SCR \u63a7\u5236\u5668\u8f6f\u4ef6\uff0c\u6216\u66f4\u6362\u635f\u574f\u7684\u63a7\u5236\u5668\u3002<\/p>\n<h3>\u4fee\u590d P20B9 \u4ee3\u7801\u7684\u8d39\u7528\u662f\u591a\u5c11\uff1f<\/h3>\n<p>\u7ef4\u4fee\u8d39\u7528\u8303\u56f4\u5728 500 \u81f3 2000 \u7f8e\u5143\uff08\u20ac420 \u81f3 \u20ac1680 EUR\uff09\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u5177\u4f53\u95ee\u9898\u548c\u8f66\u8f86\u578b\u53f7\u3002<\/p>\n<h3>\u6709\u4f55\u9884\u9632\u63aa\u65bd\u53ef\u907f\u514d P20B9 \u4ee3\u7801\uff1f<\/h3>\n<p>\u5b9a\u671f\u7ef4\u62a4 SCR \u7cfb\u7edf\uff0c\u4f7f\u7528\u9ad8\u8d28\u91cf\u7684 DEF\uff0c\u5e76\u53ca\u65f6\u5904\u7406\u4efb\u4f55\u4e0e SCR \u76f8\u5173\u7684\u8b66\u544a\u706f\uff0c\u53ef\u4ee5\u5e2e\u52a9\u9884\u9632\u6b64\u95ee\u9898\u3002<\/p>\n<h3>\u5982\u679c\u4e0d\u5904\u7406\uff0cP20B9 \u4ee3\u7801\u4f1a\u9020\u6210\u635f\u574f\u5417\uff1f<\/h3>\n<p>\u662f\u7684\uff0c\u5ffd\u89c6\u8be5\u4ee3\u7801\u53ef\u80fd\u5bfc\u81f4 SCR \u7cfb\u7edf\u6545\u969c\u3001\u50ac\u5316\u8f6c\u6362\u5668\u635f\u574f\u4ee5\u53ca\u5728\u5bd2\u51b7\u6761\u4ef6\u4e0b DEF \u7bb1\u53d7\u635f\u3002<\/p>\n<h3>P20B9 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title=\"P203F\uff08\u8fd8\u539f\u5242\u6db2\u4f4d\u8fc7\u4f4e\uff09\">P203F\uff08\u8fd8\u539f\u5242\u6db2\u4f4d\u8fc7\u4f4e\uff09<\/a>\u3002<\/p>\n<h3>\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u5982\u4f55\u5f71\u54cd\u6392\u653e\uff1f<\/h3>\n<p>\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u786e\u4fdd DEF \u5904\u4e8e\u9002\u5f53\u7684\u6e29\u5ea6\uff0c\u4ee5\u5b9e\u73b0 NOx \u7684\u6709\u6548\u51cf\u5c11\uff0c\u76f4\u63a5\u5f71\u54cd\u8f66\u8f86\u7684\u6392\u653e\u6027\u80fd\u3002<\/p>\n<h3>P20B9 \u4ee3\u7801\u662f\u5426\u5305\u542b\u5728\u4fdd\u4fee\u8303\u56f4\u5185\uff1f<\/h3>\n<p>\u8986\u76d6\u8303\u56f4\u53d6\u51b3\u4e8e\u8f66\u8f86\u7684\u4f7f\u7528\u5e74\u9650\u3001\u91cc\u7a0b\u548c\u5177\u4f53\u4fdd\u4fee\u6761\u6b3e\u3002\u4e00\u4e9b\u5236\u9020\u5546\u5bf9 SCR \u7cfb\u7edf\u7ec4\u4ef6\u63d0\u4f9b\u5ef6\u957f\u4fdd\u4fee\u3002<\/p>\n<h3>P20B9 \u4ee3\u7801\u662f\u5426\u4f1a\u5bfc\u81f4\u8f66\u8f86\u8fdb\u5165\u762b\u75ea\u6a21\u5f0f\uff1f<\/h3>\n<p>\u867d\u7136\u4e0d\u4f1a\u7acb\u5373\u53d1\u751f\uff0c\u4f46 SCR \u7cfb\u7edf\u7684\u6301\u7eed\u95ee\u9898\u6700\u7ec8\u53ef\u80fd\u89e6\u53d1\u762b\u75ea\u6a21\u5f0f\uff0c\u4ee5\u4fdd\u62a4\u53d1\u52a8\u673a\u548c\u6392\u653e\u7cfb\u7edf\u3002<\/p>\n<h3>\u4fee\u590d P20B9 \u4ee3\u7801\u901a\u5e38\u9700\u8981\u591a\u957f\u65f6\u95f4\uff1f<\/h3>\n<p>\u7ef4\u4fee\u65f6\u95f4\u901a\u5e38\u4e3a 1 \u81f3 4 \u5c0f\u65f6\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u5177\u4f53\u95ee\u9898\u548c\u8f66\u8f86\u578b\u53f7\u3002\u590d\u6742\u7684\u7ef4\u4fee\u6216\u96f6\u4ef6\u66f4\u6362\u53ef\u80fd\u9700\u8981\u66f4\u957f\u65f6\u95f4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3 OBD-II \u4ee3\u7801 P20B9\uff1a\u8fd8\u539f\u5242\u52a0\u70ed\u5668\u201cA\u201d\u63a7\u5236\u7535\u8def\/\u5f00\u8def P20B9 \u8bca\u65ad\u6545\u969c\u4ee3\u7801 (DTC) <\/p>\n","protected":false},"author":13,"featured_media":287669,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-287667","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/posts\/287667","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/comments?post=287667"}],"version-history":[{"count":3,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/posts\/287667\/revisions"}],"predecessor-version":[{"id":288551,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/posts\/287667\/revisions\/288551"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/media\/287669"}],"wp:attachment":[{"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/media?parent=287667"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/categories?post=287667"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/tags?post=287667"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}