{"id":287724,"date":"2024-10-23T10:14:24","date_gmt":"2024-10-23T10:14:24","guid":{"rendered":"https:\/\/www.ziptuning.com\/zh\/?p=287724"},"modified":"2024-11-04T12:05:57","modified_gmt":"2024-11-04T12:05:57","slug":"p20fe-reductant-quality-sensor-circuit-low","status":"publish","type":"post","link":"https:\/\/www.ziptuning.com\/zh\/blog\/p20fe-reductant-quality-sensor-circuit-low\/","title":{"rendered":"P20FE &#8211; \u8fd8\u539f\u5242\u8d28\u91cf\u4f20\u611f\u5668\u7535\u8def\u7535\u538b\u4f4e"},"content":{"rendered":"<h2 id=\"urgency-and-severity\">\u7d27\u6025\u6027\u548c\u4e25\u91cd\u6027<\/h2>\n<p>P20FE\u4ee3\u7801\u8868\u660e\u8f66\u8f86\u6392\u653e\u63a7\u5236\u7cfb\u7edf\u4e2d\u7684\u8fd8\u539f\u5242\u8ba1\u91cf\u5355\u51431\u5b58\u5728\u6027\u80fd\u95ee\u9898\u3002\u867d\u7136\u8fd9\u4e2a\u95ee\u9898\u4e0d\u662f\u7acb\u5373\u7d27\u6025\u7684\uff0c\u4f46\u5e94\u5c3d\u5feb\u89e3\u51b3\u4ee5\u7ef4\u6301\u6b63\u5e38\u7684\u6392\u653e\u63a7\u5236\u5e76\u9632\u6b62\u6f5c\u5728\u7684\u53d1\u52a8\u673a\u6027\u80fd\u95ee\u9898\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u77ed\u671f\u7ee7\u7eed\u9a7e\u9a76\u662f\u5b89\u5168\u7684\uff0c\u4f46\u5efa\u8bae\u5728\u63a5\u4e0b\u6765\u7684\u51e0\u5929\u5185\u5b89\u6392\u4e0e\u6280\u672f\u4eba\u5458\u6216\u7ecf\u9500\u5546\u7684\u7ef4\u4fee\u9884\u7ea6\u3002<\/p>\n<div class=\"workshop-experience-text\">\n<p>\u5728\u6211\u4eec\u7684\u8f66\u95f4\u4e2d\uff0cP20FE\u4ee3\u7801\u7ecf\u5e38\u51fa\u73b0\u5728\u6b27\u6d32\u67f4\u6cb9\u8f66\u4e0a\uff0c\u5c24\u5176\u662f\u5927\u4f17\u3001\u5965\u8fea\u548c\u5b9d\u9a6c\u8f66\u578b\u3002\u5b83\u5728\u5927\u4f17\u9014\u9510\u3001\u5965\u8feaQ7\u548c\u5b9d\u9a6cX5\u67f4\u6cb9\u8f66\u4e0a\u5c24\u4e3a\u5e38\u89c1\u3002\u6211\u4eec\u53d1\u73b0\uff0c\u8be5\u4ee3\u7801\u51e0\u4e4e\u603b\u662f\u4e0e\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f\uff08SCR\uff09\u7cfb\u7edf\u6709\u5173\uff0c\u7279\u522b\u662f\u8fd8\u539f\u5242\u8ba1\u91cf\u5355\u5143\u3002\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u6e05\u6d01DEF\u55b7\u6cb9\u5668\u548c\u66f4\u65b0\u53d1\u52a8\u673a\u63a7\u5236\u6a21\u5757\u8f6f\u4ef6\u53ef\u4ee5\u89e3\u51b3\u95ee\u9898\u3002\u7136\u800c\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u9700\u8981\u66f4\u6362\u6574\u4e2a\u8fd8\u539f\u5242\u8ba1\u91cf\u5355\u5143\u3002\u6709\u8da3\u7684\u662f\uff0c\u6211\u4eec\u5f88\u5c11\u5728\u7f8e\u7cfb\u6216\u4e9a\u6d32\u8f66\u8f86\u4e0a\u770b\u5230\u8fd9\u4e2a\u4ee3\u7801\uff0c\u8bf4\u660e\u5b83\u66f4\u53ef\u80fd\u662f\u6b27\u6d32\u67f4\u6cb9\u8f66\u7684\u7279\u6709\u95ee\u9898\u3002<\/p>\n<\/div>\n<h2 id=\"code-details\">\u4ee3\u7801\u8be6\u60c5<\/h2>\n<p>P20FE\u662f\u4e0e\u6392\u653e\u63a7\u5236\u7cfb\u7edf\u76f8\u5173\u7684\u52a8\u529b\u7cfb\u7edf\u4ee3\u7801\u3002\u5177\u4f53\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>P\uff1a\u52a8\u529b\u7cfb\u7edf<\/li>\n<li>2\uff1a\u71c3\u6599\u548c\u7a7a\u6c14\u8ba1\u91cf\u53ca\u8f85\u52a9\u6392\u653e\u63a7\u5236<\/li>\n<li>0FE\uff1a\u7279\u5b9a\u6545\u969c\u7d22\u5f15<\/li>\n<\/ul>\n<p>\u8be5\u4ee3\u7801\u4e3b\u8981\u4e0e\u798f\u7279\u8f66\u8f86\u6709\u5173\uff0c\u4f46\u5728\u5176\u4ed6\u54c1\u724c\u4e2d\u4e5f\u53ef\u80fd\u51fa\u73b0\u3002\u5b83\u8868\u660e\u53d1\u52a8\u673a\u63a7\u5236\u6a21\u5757\uff08ECM\uff09\u68c0\u6d4b\u5230\u8fd8\u539f\u5242\u8ba1\u91cf\u5355\u51431\u7684\u6027\u80fd\u95ee\u9898\uff0c\u8be5\u5355\u5143\u8d1f\u8d23\u5c06\u67f4\u6cb9\u6392\u653e\u6db2\uff08DEF\uff09\u6ce8\u5165\u6392\u6c14\u7cfb\u7edf\u3002<\/p>\n<p>\u76f8\u5173\u4ee3\u7801\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>P207F\uff1a\u8fd8\u539f\u5242\u8d28\u91cf\u95ee\u9898<\/li>\n<li>P20EE\uff1aSCR NOx\u50ac\u5316\u5242\u6548\u7387\u4f4e\u4e8e\u9608\u503c<\/li>\n<\/ul>\n<h2 id=\"components-involved\">\u6d89\u53ca\u7684\u7ec4\u4ef6<\/h2>\n<p>\u4e0eP20FE\u4ee3\u7801\u76f8\u5173\u7684\u4e3b\u8981\u7ec4\u4ef6\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\u8fd8\u539f\u5242\u8ba1\u91cf\u5355\u5143\uff08RMU\uff09\uff1a\u8be5\u8bbe\u5907\u7cbe\u786e\u5c06DEF\u6ce8\u5165\u6392\u6c14\u6d41\u3002<\/li>\n<li>\u67f4\u6cb9\u6392\u653e\u6db2\uff08DEF\uff09\uff1a\u7528\u4e8e\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f\uff08SCR\uff09\u7cfb\u7edf\u7684\u5c3f\u7d20\u57fa\u6eb6\u6db2\u3002<\/li>\n<li>\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f\uff08SCR\uff09\u7cfb\u7edf\uff1a\u51cf\u5c11\u67f4\u6cb9\u53d1\u52a8\u673a\u4e2d\u7684NOx\u6392\u653e\u3002<\/li>\n<li>NOx\u4f20\u611f\u5668\uff1a\u76d1\u6d4bSCR\u50ac\u5316\u5242\u524d\u540e\u6c2e\u6c27\u5316\u7269\u7684\u6c34\u5e73\u3002<\/li>\n<li>\u53d1\u52a8\u673a\u63a7\u5236\u6a21\u5757\uff08ECM\uff09\uff1a\u76d1\u63a7\u5e76\u63a7\u5236\u6574\u4e2a\u7cfb\u7edf\u3002<\/li>\n<\/ol>\n<p>RMU\u5728SCR\u7cfb\u7edf\u4e2d\u8d77\u7740\u5173\u952e\u4f5c\u7528\uff0c\u786e\u4fdd\u5c06\u6b63\u786e\u91cf\u7684DEF\u6ce8\u5165\u6392\u6c14\u6d41\uff0c\u4ee5\u6709\u6548\u51cf\u5c11NOx\u6392\u653e\u3002<\/p>\n<h2 id=\"common-causes\">\u5e38\u89c1\u539f\u56e0<\/h2>\n<ol>\n<li>\u8fd8\u539f\u5242\u8ba1\u91cf\u5355\u5143\u6545\u969c<\/li>\n<li>DEF\u6c61\u67d3\u6216\u8d28\u91cf\u4e0d\u4f73<\/li>\n<li>DEF\u55b7\u6cb9\u5668\u5835\u585e<\/li>\n<li>RMU\u7535\u8def\u4e2d\u7684\u7ebf\u8def\u95ee\u9898<\/li>\n<li>ECM\u8f6f\u4ef6\u95ee\u9898<\/li>\n<li>\u5f71\u54cdSCR\u7cfb\u7edf\u6027\u80fd\u7684\u6392\u6c14\u6cc4\u6f0f<\/li>\n<\/ol>\n<h2 id=\"diagnostic-procedure\">\u8bca\u65ad\u6b65\u9aa4<\/h2>\n<ol>\n<li>\u8fde\u63a5\u8bca\u65ad\u626b\u63cf\u4eea\u5e76\u68c0\u7d22\u6240\u6709\u5b58\u50a8\u7684\u4ee3\u7801\u548c\u51bb\u7ed3\u5e27\u6570\u636e\u3002<\/li>\n<li>\u68c0\u67e5DEF\u6db2\u4f4d\u548c\u8d28\u91cf\u3002<\/li>\n<li>\u68c0\u67e5DEF\u7cfb\u7edf\u662f\u5426\u6709\u660e\u663e\u7684\u635f\u574f\u6216\u6cc4\u6f0f\u3002<\/li>\n<li>\u68c0\u67e5\u4e0eRMU\u76f8\u5173\u7684\u7ebf\u8def\u548c\u8fde\u63a5\u5668\u662f\u5426\u6709\u635f\u574f\u6216\u8150\u8680\u3002<\/li>\n<li>\u4f7f\u7528\u626b\u63cf\u4eea\u547d\u4ee4RMU\u8fd0\u884c\u5e76\u89c2\u5bdf\u5176\u6027\u80fd\u3002<\/li>\n<li>\u4f7f\u7528\u4e07\u7528\u8868\u68c0\u67e5RMU\u7684\u7535\u538b\u548c\u63a5\u5730\u4fe1\u53f7\u3002<\/li>\n<li>\u68c0\u67e5\u6392\u6c14\u7cfb\u7edf\u662f\u5426\u6709\u6cc4\u6f0f\uff0c\u7279\u522b\u662fSCR\u50ac\u5316\u5242\u5468\u56f4\u3002<\/li>\n<li>\u67e5\u770b\u51bb\u7ed3\u5e27\u6570\u636e\u4ee5\u786e\u5b9a\u6545\u969c\u53d1\u751f\u65f6\u7684\u6761\u4ef6\u3002<\/li>\n<\/ol>\n<h2 id=\"solutions\">\u89e3\u51b3\u65b9\u6848<\/h2>\n<ol>\n<li>\u5982\u679cRMU\u6545\u969c\uff0c\u8fdb\u884c\u66f4\u6362\u3002<\/li>\n<li>\u6392\u7a7aDEF\u7f50\u5e76\u91cd\u65b0\u52a0\u6ce8\u9ad8\u8d28\u91cf\u7684\u65b0\u6db2\u4f53\u3002<\/li>\n<li>\u5982\u679cDEF\u55b7\u6cb9\u5668\u5835\u585e\uff0c\u8fdb\u884c\u6e05\u6d01\u6216\u66f4\u6362\u3002<\/li>\n<li>\u4fee\u590dRMU\u7535\u8def\u4e2d\u7684\u4efb\u4f55\u7ebf\u8def\u6216\u8fde\u63a5\u5668\u635f\u574f\u3002<\/li>\n<li>\u5982\u679c\u5df2\u77e5\u5b58\u5728\u95ee\u9898\uff0c\u66f4\u65b0ECM\u8f6f\u4ef6\u3002<\/li>\n<li>\u4fee\u590d\u6392\u6c14\u6cc4\u6f0f\uff0c\u7279\u522b\u662fSCR\u7cfb\u7edf\u5468\u56f4\u3002<\/li>\n<\/ol>\n<h2 id=\"prevention\">\u9884\u9632\u63aa\u65bd<\/h2>\n<ol>\n<li>\u4ec5\u4f7f\u7528\u6765\u81ea\u53ef\u9760\u6765\u6e90\u7684\u9ad8\u8d28\u91cfDEF\u3002<\/li>\n<li>\u59cb\u7ec8\u4fdd\u6301\u9002\u5f53\u7684DEF\u6db2\u4f4d\u3002<\/li>\n<li>\u9075\u5faa\u5236\u9020\u5546\u63a8\u8350\u7684\u6392\u653e\u7cfb\u7edf\u7ef4\u62a4\u8ba1\u5212\u3002<\/li>\n<li>\u53ca\u65f6\u4fee\u590d\u4efb\u4f55\u6392\u6c14\u6cc4\u6f0f\uff0c\u4ee5\u9632\u6b62\u7cfb\u7edf\u635f\u574f\u3002<\/li>\n<\/ol>\n<h2 id=\"repair-costs\">\u7ef4\u4fee\u8d39\u7528<\/h2>\n<p>\u9884\u8ba1\u8d39\u7528\uff08\u7f8e\u5143\/\u6b27\u5143\uff09\uff1a<\/p>\n<ul>\n<li>\u8bca\u65ad\u8d39\uff1a$100-150 \/ \u20ac85-130<\/li>\n<li>RMU\u66f4\u6362\uff1a$500-800 \/ \u20ac425-680<\/li>\n<li>DEF\u7cfb\u7edf\u6e05\u6d01\uff1a$150-250 \/ \u20ac130-215<\/li>\n<li>ECM\u8f6f\u4ef6\u66f4\u65b0\uff1a$100-200 \/ \u20ac85-170<\/li>\n<\/ul>\n<p>\u603b\u7ef4\u4fee\u8d39\u7528\u53ef\u80fd\u5728$200\u5230$1000 (\u20ac170\u5230\u20ac850) \u4e4b\u95f4\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u5177\u4f53\u95ee\u9898\u548c\u6240\u9700\u7684\u7ef4\u4fee\u3002<\/p>\n<h2 id=\"repair-guide\">\u7ef4\u4fee\u6307\u5357<\/h2>\n<ol>\n<li>\u65ad\u5f00\u7535\u6c60\u8d1f\u6781\u7aef\u5b50\u3002<\/li>\n<li>\u627e\u5230\u4f4d\u4e8eDEF\u7f50\u6216SCR\u50ac\u5316\u5242\u9644\u8fd1\u7684\u8fd8\u539f\u5242\u8ba1\u91cf\u5355\u5143\u3002<\/li>\n<li>\u65ad\u5f00RMU\u7684\u7535\u6c14\u8fde\u63a5\u5668\u548cDEF\u4f9b\u5e94\u7ba1\u7ebf\u3002<\/li>\n<li>\u62c6\u9664\u5b89\u88c5\u87ba\u6813\u5e76\u53d6\u51faRMU\u3002<\/li>\n<li>\u5b89\u88c5\u65b0\u7684RMU\uff0c\u786e\u4fdd\u6b63\u786e\u5bf9\u9f50\u548c\u5bc6\u5c01\u3002<\/li>\n<li>\u91cd\u65b0\u8fde\u63a5DEF\u4f9b\u5e94\u7ba1\u7ebf\u548c\u7535\u6c14\u8fde\u63a5\u5668\u3002<\/li>\n<li>\u6e05\u9664\u6240\u6709DTC\u5e76\u4f7f\u7528\u8bca\u65ad\u626b\u63cf\u4eea\u8fdb\u884c\u7cfb\u7edf\u91cd\u65b0\u5b66\u4e60\u7a0b\u5e8f\u3002<\/li>\n<li>\u8fdb\u884c\u8bd5\u9a7e\uff0c\u786e\u4fdd\u64cd\u4f5c\u6b63\u5e38\u3002<\/li>\n<\/ol>\n<h2 id=\"related-issues\">\u76f8\u5173\u95ee\u9898<\/h2>\n<ul>\n<li>DEF\u8d28\u91cf\u4f20\u611f\u5668\u6545\u969c\uff08P20EE\u3001P207F\uff09<\/li>\n<li>NOx\u4f20\u611f\u5668\u6545\u969c\uff08<a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p220b-nox-sensor-circuit-low\/\" title=\"P220B\">P220B<\/a>\u3001<a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p220c-nox-sensor-circuit-high\/\" title=\"P220C\">P220C<\/a>\uff09<\/li>\n<li>SCR\u50ac\u5316\u5242\u6548\u7387\u95ee\u9898\uff08P20EE\uff09<\/li>\n<li>\u6392\u6c14\u6e29\u5ea6\u4f20\u611f\u5668\u6545\u969c\uff08<a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p2080-exhaust-gas-temperature-sensor-circuit-range-performance\/\" title=\"P2080\">P2080<\/a>\u3001<a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p2084-exhaust-gas-temperature-sensor-circuit-intermittent\/\" title=\"P2084\">P2084<\/a>\uff09<\/li>\n<\/ul>\n<p>\u7531\u4e8e\u73b0\u4ee3\u6392\u653e\u63a7\u5236\u7cfb\u7edf\u7684\u4e92\u8054\u6027\uff0c\u53ef\u80fd\u4f1a\u5b58\u5728\u591a\u4e2a\u76f8\u5173\u4ee3\u7801\uff0c\u56e0\u6b64\u59cb\u7ec8\u8fdb\u884c\u5f7b\u5e95\u7684\u7cfb\u7edf\u8bca\u65ad\u3002<\/p>\n<h2 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