{"id":287582,"date":"2024-10-23T04:42:02","date_gmt":"2024-10-23T04:42:02","guid":{"rendered":"https:\/\/www.ziptuning.com\/zh\/?p=287582"},"modified":"2024-11-04T07:49:25","modified_gmt":"2024-11-04T07:49:25","slug":"p202e-reductant-injector-1-control-circuit-high","status":"publish","type":"post","link":"https:\/\/www.ziptuning.com\/zh\/blog\/p202e-reductant-injector-1-control-circuit-high\/","title":{"rendered":"P202E &#8211; \u8fd8\u539f\u5242\u55b7\u6cb9\u5668#1\u63a7\u5236\u7535\u8def\u9ad8"},"content":{"rendered":"<h2 id=\"urgency-and-driving-implications\">\u7d27\u6025\u6027\u548c\u9a7e\u9a76\u5f71\u54cd<\/h2>\n<p>P202E\u4ee3\u7801\u88ab\u89c6\u4e3a\u4e00\u4e2a\u4e25\u91cd\u95ee\u9898\uff0c\u9700\u8981\u53ca\u65f6\u5904\u7406\u3002\u867d\u7136\u5b83\u53ef\u80fd\u4e0d\u4f1a\u7acb\u5373\u5bfc\u81f4\u53d1\u52a8\u673a\u6545\u969c\uff0c\u4f46\u5982\u679c\u7ee7\u7eed\u5728\u4ee3\u7801\u6fc0\u6d3b\u7684\u60c5\u51b5\u4e0b\u9a7e\u9a76\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u663e\u8457\u95ee\u9898\uff1a<\/p>\n<div class=\"workshop-experience-text\">\n<p>\u5728\u6211\u4eec\u7684\u8f66\u95f4\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9047\u5230P202E\u4ee3\u7801\uff0c\u7279\u522b\u662f\u5728\u914d\u5907\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f(SCR)\u7cfb\u7edf\u7684\u67f4\u6cb9\u8f66\u4e2d\u3002\u6211\u4eec\u6700\u5e38\u89c1\u7684\u6848\u4f8b\u662f\u5728\u5954\u9a70Sprinter\u3001\u5b9d\u9a6cX5\u67f4\u6cb9\u8f66\u548c\u5927\u4f17\u9014\u9510\u8f66\u578b\u4e2d\u3002\u6839\u636e\u6211\u4eec\u7684\u7ecf\u9a8c\uff0c\u95ee\u9898\u7684\u6839\u672c\u539f\u56e0\u901a\u5e38\u4e0e\u6545\u969c\u7684DEF(\u67f4\u6cb9\u6392\u6c14\u6db2)\u55b7\u6cb9\u5668\u6216DEF\u7cfb\u7edf\u4e2d\u7684\u7ebf\u8def\u95ee\u9898\u6709\u5173\u3002\u6211\u4eec\u53d1\u73b0\uff0c\u5f7b\u5e95\u68c0\u67e5DEF\u7cfb\u7edf\u7ec4\u4ef6\uff0c\u5305\u62ec\u55b7\u6cb9\u5668\u3001\u7ebf\u675f\u548c\u8fde\u63a5\u5668\uff0c\u901a\u5e38\u53ef\u4ee5\u627e\u5230\u95ee\u9898\u6240\u5728\u3002\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u66f4\u6362DEF\u55b7\u6cb9\u5668\u6216\u4fee\u590d\u635f\u574f\u7684\u7ebf\u8def\u53ef\u4ee5\u89e3\u51b3\u95ee\u9898\uff0c\u4f46\u5076\u5c14\u6211\u4eec\u4e5f\u9700\u8981\u66f4\u65b0ECU\u8f6f\u4ef6\u4ee5\u5b8c\u5168\u6e05\u9664\u4ee3\u7801\u3002<\/p>\n<\/div>\n<ol>\n<li>\u53d1\u52a8\u673a\u6027\u80fd\u4e0b\u964d\u548c\u71c3\u6cb9\u6548\u7387\u964d\u4f4e<\/li>\n<li>\u6392\u6c14\u4e2d\u4ea7\u751f\u8fc7\u591a\u7684\u9ed1\u70df<\/li>\n<li>\u50ac\u5316\u8f6c\u6362\u5668\u548cSCR\u7cfb\u7edf\u53ef\u80fd\u53d7\u635f<\/li>\n<\/ol>\n<p>\u901a\u5e38\u53ef\u4ee5\u5c06\u8f66\u8f86\u5b89\u5168\u9a7e\u9a76\u5230\u4fee\u7406\u5382\uff0c\u4f46\u5e94\u907f\u514d\u957f\u65f6\u95f4\u64cd\u4f5c\u3002\u5982\u679c\u5ffd\u89c6\u8be5\u4ee3\u7801\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u66f4\u4e25\u91cd\u7684\u53d1\u52a8\u673a\u635f\u574f\u548c\u66f4\u9ad8\u7684\u7ef4\u4fee\u8d39\u7528\u3002<\/p>\n<h2 id=\"detailed-code-information\">\u4ee3\u7801\u8be6\u7ec6\u4fe1\u606f<\/h2>\n<p>P202E\u662f\u4e00\u4e2a\u4e0e\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f(SCR)\u7cfb\u7edf\u76f8\u5173\u7684\u901a\u7528\u52a8\u529b\u7cfb\u7edf\u4ee3\u7801\u3002\u5176\u5b8c\u6574\u63cf\u8ff0\u4e3a\u201c\u8fd8\u539f\u5242\u55b7\u5c04\u9600\u7535\u8def\u8303\u56f4\/\u6027\u80fd\u94f6\u884c1\u5355\u51431\u201d\u3002\u8be5\u4ee3\u7801\u8868\u793a\u52a8\u529b\u7cfb\u7edf\u63a7\u5236\u6a21\u5757(PCM)\u68c0\u6d4b\u5230\u94f6\u884c1\u7684\u8fd8\u539f\u5242\u55b7\u5c04\u9600\u63a7\u5236\u7535\u8def\u4e2d\u7684\u5f02\u5e38\u7535\u538b\u3002<\/p>\n<p>\u867d\u7136P202E\u662f\u4e00\u4e2a\u901a\u7528\u4ee3\u7801\uff0c\u4f46\u5b83\u6700\u5e38\u89c1\u4e8e\u914d\u5907SCR\u7cfb\u7edf\u7684\u67f4\u6cb9\u8f66\u8f86\u4e2d\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u798f\u7279F\u7cfb\u5217\u5361\u8f66(2011\u5e74\u53ca\u66f4\u65b0\u578b\u53f7)<\/li>\n<li>RAM\u5361\u8f66(2013\u5e74\u53ca\u66f4\u65b0\u578b\u53f7)<\/li>\n<li>\u96ea\u4f5b\u5170\u548cGMC\u91cd\u578b\u5361\u8f66(2011\u5e74\u53ca\u66f4\u65b0\u578b\u53f7)<\/li>\n<li>\u6765\u81ea\u6885\u8d5b\u5fb7\u65af-\u5954\u9a70\u3001\u5b9d\u9a6c\u548c\u5927\u4f17\u7b49\u6b27\u6d32\u5236\u9020\u5546\u7684\u5404\u79cd\u67f4\u6cb9\u8f66\u578b<\/li>\n<\/ul>\n<h2 id=\"components-involved\">\u6d89\u53ca\u7684\u7ec4\u4ef6<\/h2>\n<p>\u8fd8\u539f\u5242\u55b7\u5c04\u7cfb\u7edf\uff0c\u4e5f\u79f0\u4e3a\u67f4\u6cb9\u6392\u6c14\u6db2(DEF)\u7cfb\u7edf\uff0c\u7531\u4ee5\u4e0b\u5173\u952e\u7ec4\u4ef6\u7ec4\u6210\uff1a<\/p>\n<ol>\n<li>DEF\u50a8\u7f50\u548c\u6cf5<\/li>\n<li>DEF\u55b7\u6cb9\u5668(\u8fd8\u539f\u5242\u55b7\u5c04\u9600)<\/li>\n<li>DEF\u7ba1\u7ebf\u548c\u52a0\u70ed\u5668<\/li>\n<li>SCR\u50ac\u5316\u5242<\/li>\n<li>NOx\u4f20\u611f\u5668<\/li>\n<li>\u6e29\u5ea6\u4f20\u611f\u5668<\/li>\n<li>\u63a7\u5236\u6a21\u5757(PCM\u6216\u72ec\u7acbSCR\u63a7\u5236\u5668)<\/li>\n<\/ol>\n<p>\u8fd8\u539f\u5242\u55b7\u5c04\u9600\u5728\u5c06DEF\u55b7\u5165\u6392\u6c14\u6d41\u4e2d\u8d77\u5173\u952e\u4f5c\u7528\u3002DEF\u662f\u4e00\u79cd\u753132.5%\u5c3f\u7d20\u548c67.5%\u53bb\u79bb\u5b50\u6c34\u7ec4\u6210\u7684\u6eb6\u6db2\uff0c\u5f53\u52a0\u70ed\u65f6\u4f1a\u5206\u89e3\u6210\u6c28\u3002\u8fd9\u79cd\u6c28\u5728SCR\u50ac\u5316\u5242\u4e2d\u4e0eNOx\u53cd\u5e94\uff0c\u5c06\u6709\u5bb3\u7684\u6392\u653e\u7269\u8f6c\u5316\u4e3a\u65e0\u5bb3\u7684\u6c2e\u6c14\u548c\u6c34\u84b8\u6c14\u3002<\/p>\n<h2 id=\"common-causes\">\u5e38\u89c1\u539f\u56e0<\/h2>\n<p>\u591a\u79cd\u56e0\u7d20\u53ef\u80fd\u89e6\u53d1P202E\u4ee3\u7801\uff1a<\/p>\n<ol>\n<li>\u6545\u969c\u7684\u8fd8\u539f\u5242\u55b7\u6cb9\u5668<\/li>\n<li>\u55b7\u6cb9\u5668\u63a7\u5236\u7535\u8def\u4e2d\u7684\u7ebf\u8def\u6216\u8fde\u63a5\u5668\u635f\u574f<\/li>\n<li>\u6545\u969c\u7684\u6392\u6c14\u538b\u529b\u4f20\u611f\u5668<\/li>\n<li>\u8fd8\u539f\u5242\u6e29\u5ea6\u4f20\u611f\u5668\u6545\u969c<\/li>\n<li>\u8fd8\u539f\u5242\u6e29\u5ea6\u6052\u6e29\u5668\u6545\u969c<\/li>\n<li>\u53d1\u52a8\u673a\u63a7\u5236\u6a21\u5757(ECM)\u6216SCR\u63a7\u5236\u5668\u6545\u969c<\/li>\n<li>DEF\u6db2\u4f4d\u4e0d\u8db3<\/li>\n<li>\u53d7\u6c61\u67d3\u6216\u52a3\u8d28\u7684DEF\u6db2\u4f53<\/li>\n<\/ol>\n<h2 id=\"step-by-step-diagnostic-procedure\">\u9010\u6b65\u8bca\u65ad\u6b65\u9aa4<\/h2>\n<p>\u8981\u8bca\u65adP202E\u4ee3\u7801\uff0c\u8bf7\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u64cd\u4f5c\uff1a<\/p>\n<ol>\n<li>\u8fde\u63a5OBD-II\u626b\u63cf\u4eea\uff0c\u68c0\u7d22\u6240\u6709\u5b58\u50a8\u7684\u4ee3\u7801\u548c\u51bb\u7ed3\u5e27\u6570\u636e\u3002<\/li>\n<li>\u76ee\u89c6\u68c0\u67e5DEF\u7cfb\u7edf\u7ec4\u4ef6\u3001\u7ebf\u8def\u548c\u8fde\u63a5\u5668\uff0c\u67e5\u627e\u660e\u663e\u7684\u635f\u574f\u6216\u8150\u8680\u3002<\/li>\n<li>\u68c0\u67e5DEF\u6db2\u4f4d\u548c\u8d28\u91cf\u3002<\/li>\n<li>\u4f7f\u7528\u6570\u5b57\u4e07\u7528\u8868\u6d4b\u8bd5SCR\u7cfb\u7edf\u7684\u7535\u6e90\u548c\u63a5\u5730\u7535\u8def\u3002<\/li>\n<li>\u4f7f\u7528\u53cc\u5411\u626b\u63cf\u5de5\u5177\u6fc0\u6d3b\u8fd8\u539f\u5242\u55b7\u6cb9\u5668\u5e76\u6d4b\u91cf\u8f93\u51fa\u63a7\u5236\u7535\u8def\u7535\u538b\u3002<\/li>\n<li>\u6d4b\u8bd5\u8fd8\u539f\u5242\u55b7\u6cb9\u5668\u7684\u7535\u963b\uff0c\u5e76\u4e0e\u5236\u9020\u5546\u89c4\u683c\u8fdb\u884c\u6bd4\u8f83\u3002<\/li>\n<li>\u68c0\u67e5SCR\u50ac\u5316\u5242\u524d\u540e\u7684\u6392\u6c14\u6cc4\u6f0f\u3002<\/li>\n<li>\u9a8c\u8bc1\u76f8\u5173\u4f20\u611f\u5668\u7684\u64cd\u4f5c\uff0c\u5305\u62ecNOx\u4f20\u611f\u5668\u548c\u6e29\u5ea6\u4f20\u611f\u5668\u3002<\/li>\n<li>\u5982\u679c\u6240\u6709\u7ec4\u4ef6\u90fd\u6b63\u5e38\uff0c\u8bf7\u8003\u8651\u6d4b\u8bd5PCM\u6216SCR\u63a7\u5236\u5668\u3002<\/li>\n<\/ol>\n<h2 id=\"solutions-and-repair-options\">\u89e3\u51b3\u65b9\u6848\u548c\u7ef4\u4fee\u9009\u9879<\/h2>\n<p>\u6839\u636e\u8bca\u65ad\u7ed3\u679c\uff0c\u53ef\u80fd\u7684\u7ef4\u4fee\u65b9\u6848\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\u66f4\u6362\u6545\u969c\u7684\u8fd8\u539f\u5242\u55b7\u6cb9\u5668<\/li>\n<li>\u4fee\u590d\u6216\u66f4\u6362\u635f\u574f\u7684\u7ebf\u8def\u548c\u8fde\u63a5\u5668<\/li>\n<li>\u66f4\u6362\u6545\u969c\u7684\u4f20\u611f\u5668(\u6392\u6c14\u538b\u529b\u3001\u6e29\u5ea6\u3001NOx)<\/li>\n<li>\u66f4\u65b0PCM\u6216SCR\u63a7\u5236\u5668\u8f6f\u4ef6<\/li>\n<li>\u66f4\u6362PCM\u6216SCR\u63a7\u5236\u5668(\u7f55\u89c1\u60c5\u51b5)<\/li>\n<li>\u8865\u5145\u6216\u66f4\u6362\u53d7\u6c61\u67d3\u7684DEF\u6db2\u4f53<\/li>\n<\/ol>\n<p>\u5bf9\u4e8eDIY\u7ef4\u4fee\uff0c\u66ff\u6362DEF\u6db2\u4f53\u6216\u4fee\u590d\u8f7b\u5fae\u7684\u7ebf\u8def\u95ee\u9898\u53ef\u80fd\u662f\u53ef\u884c\u7684\u3002\u7136\u800c\uff0c\u6d89\u53ca\u7ec4\u4ef6\u66f4\u6362\u6216\u8f6f\u4ef6\u66f4\u65b0\u7684\u590d\u6742\u7ef4\u4fee\u5e94\u7531\u5408\u683c\u6280\u5e08\u8fdb\u884c\u3002<\/p>\n<h2 id=\"prevention-strategies\">\u9884\u9632\u7b56\u7565<\/h2>\n<p>\u4e3a\u4e86\u9884\u9632P202E\u53ca\u76f8\u5173\u95ee\u9898\uff1a<\/p>\n<ol>\n<li>\u4f7f\u7528\u9ad8\u8d28\u91cf\u7684DEF\u6db2\u4f53\u5e76\u4fdd\u6301\u9002\u5f53\u7684\u6db2\u4f4d<\/li>\n<li>\u9075\u5faa\u5236\u9020\u5546\u63a8\u8350\u7684\u7ef4\u62a4\u8ba1\u5212<\/li>\n<li>\u53ca\u65f6\u5904\u7406\u4efb\u4f55\u4e0eDEF\u76f8\u5173\u7684\u8b66\u544a\u706f<\/li>\n<li>\u4fdd\u6301DEF\u7cfb\u7edf\u6e05\u6d01\uff0c\u907f\u514d\u6c61\u67d3<\/li>\n<li>\u907f\u514d\u5c06DEF\u7ec4\u4ef6\u66b4\u9732\u5728\u6781\u7aef\u6e29\u5ea6\u4e0b<\/li>\n<li>\u5728\u9700\u8981\u66f4\u6362\u65f6\u4f7f\u7528OEM\u6216\u9ad8\u8d28\u91cf\u7684\u552e\u540e\u914d\u4ef6<\/li>\n<\/ol>\n<h2 id=\"cost-analysis\">\u8d39\u7528\u5206\u6790<\/h2>\n<p>\u7ef4\u4fee\u8d39\u7528\u56e0\u6839\u672c\u539f\u56e0\u7684\u4e0d\u540c\u800c\u5dee\u5f02\u5f88\u5927\uff1a<\/p>\n<ol>\n<li>DEF\u6db2\u4f53\u8865\u5145\uff1a$20-$50 (\u20ac17-\u20ac42)<\/li>\n<li>\u8fd8\u539f\u5242\u55b7\u6cb9\u5668\u66f4\u6362\uff1a$300-$800 (\u20ac250-\u20ac675)<\/li>\n<li>\u7ebf\u8def\u4fee\u590d\uff1a$100-$300 (\u20ac85-\u20ac250)<\/li>\n<li>\u4f20\u611f\u5668\u66f4\u6362\uff1a$150-$400 (\u20ac125-\u20ac340)<\/li>\n<li>PCM\/SCR\u63a7\u5236\u5668\u66f4\u6362\uff1a$800-$2000 (\u20ac675-\u20ac1700)<\/li>\n<\/ol>\n<p>\u4eba\u5de5\u8d39\u7528\u901a\u5e38\u4e3a\u6bcf\u5c0f\u65f6$100-$200 (\u20ac85-\u20ac170)\uff0c\u8bca\u65ad\u65f6\u95f4\u901a\u5e38\u53e6\u884c\u6536\u8d39\u3002<\/p>\n<h2 id=\"related-issues-and-fault-codes\">\u76f8\u5173\u95ee\u9898\u548c\u6545\u969c\u4ee3\u7801<\/h2>\n<p>P202E\u53ef\u80fd\u4f34\u968f\u7740\u5176\u4ed6SCR\u7cfb\u7edf\u4ee3\u7801\uff0c\u4f8b\u5982\uff1a<\/p>\n<ol>\n<li>P20EE &#8211; SCR NOx\u50ac\u5316\u6548\u7387\u4f4e\u4e8e\u9608\u503c<\/li>\n<li><a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p204f-reductant-system-performance\/\" title=\"P204F - \u8fd8\u539f\u5242\u7cfb\u7edf\u6027\u80fd\">P204F &#8211; \u8fd8\u539f\u5242\u7cfb\u7edf\u6027\u80fd<\/a><\/li>\n<li>P207F &#8211; \u8fd8\u539f\u5242\u8d28\u91cf\u6027\u80fd<\/li>\n<li><a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p20b9-reductant-heater-control-circuit-open\/\" title=\"P20B9 - \u8fd8\u539f\u5242\u52a0\u70ed\u5668\u63a7\u5236\u7535\u8def\u6027\u80fd\">P20B9 &#8211; \u8fd8\u539f\u5242\u52a0\u70ed\u5668\u63a7\u5236\u7535\u8def\u6027\u80fd<\/a><\/li>\n<li>P203B &#8211; \u8fd8\u539f\u5242\u6db2\u4f4d\u4f20\u611f\u5668\u7535\u8def\u8303\u56f4\/\u6027\u80fd<\/li>\n<\/ol>\n<p>\u8fd9\u4e9b\u76f8\u5173\u4ee3\u7801\u53ef\u4ee5\u4e3a\u8bca\u65ad\u548c\u89e3\u51b3P202E\u95ee\u9898\u63d0\u4f9b\u989d\u5916\u7684\u4e0a\u4e0b\u6587\u3002<\/p>\n<p>\u603b\u4e4b\uff0c\u867d\u7136P202E\u53ef\u80fd\u662f\u4e00\u4e2a\u590d\u6742\u7684\u95ee\u9898\uff0c\u4f46\u901a\u8fc7\u4e86\u89e3\u5176\u5f71\u54cd\u5e76\u9075\u5faa\u7cfb\u7edf\u5316\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6210\u529f\u89e3\u51b3\u8be5\u95ee\u9898\u5e76\u6539\u5584\u8f66\u8f86\u6027\u80fd\u3002<\/p>\n<h2 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