{"id":287915,"date":"2024-10-24T07:40:44","date_gmt":"2024-10-24T07:40:44","guid":{"rendered":"https:\/\/www.ziptuning.com\/zh\/?p=287915"},"modified":"2024-10-24T07:40:44","modified_gmt":"2024-10-24T07:40:44","slug":"p249e-closed-loop-reductant-injection-control-at-limit-flow-too-low","status":"publish","type":"post","link":"https:\/\/www.ziptuning.com\/zh\/blog\/p249e-closed-loop-reductant-injection-control-at-limit-flow-too-low\/","title":{"rendered":"P249E &#8211; \u95ed\u73af\u8fd8\u539f\u5242\u55b7\u5c04\u63a7\u5236\u8fbe\u5230\u6781\u9650 &#8211; \u6d41\u91cf\u592a\u4f4e"},"content":{"rendered":"<h2 id=\"what-is-code-p249e-\">\u4ec0\u4e48\u662f P249E \u6545\u969c\u7801\uff1f<\/h2>\n<p>OBD-II \u8bca\u65ad\u6545\u969c\u4ee3\u7801 (DTC) P249E \u8868\u793a \u201c\u95ed\u73af\u8fd8\u539f\u5242\u55b7\u5c04\u63a7\u5236\u8fbe\u5230\u6781\u9650 &#8211; \u6d41\u91cf\u8fc7\u9ad8\u201d\u3002\u6b64\u4ee3\u7801\u8868\u660e\u8f66\u8f86\u7684\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f (SCR) \u7cfb\u7edf\u6b63\u5728\u8fbe\u5230\u6700\u5927\u9650\u5ea6\uff0c\u55b7\u5c04\u7684\u67f4\u6cb9\u5c3e\u6c14\u5904\u7406\u6db2 (DEF) \u6d41\u91cf\u8fc7\u9ad8\u3002<\/p>\n<div class=\"workshop-experience-text\">\n<p>\u5728\u6211\u4eec\u7684\u8f66\u95f4\uff0c\u6211\u4eec\u7ecf\u5e38\u770b\u5230 P249E \u4ee3\u7801\u51fa\u73b0\u5728\u5404\u79cd\u6b27\u6d32\u54c1\u724c\uff0c\u5c24\u5176\u662f\u5e26\u6709\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f (SCR) \u7cfb\u7edf\u7684\u67f4\u6cb9\u8f66\u578b\u4e0a\u3002\u5c31\u5728\u4e0a\u4e2a\u6708\uff0c\u6211\u4eec\u5904\u7406\u4e86\u4e00\u8f86\u5b9d\u9a6c 328d\u3001\u4e00\u8f86\u5954\u9a70 Sprinter \u548c\u4e00\u8f86\u5927\u4f17\u9014\u9510\uff0c\u5b83\u4eec\u90fd\u51fa\u73b0\u4e86\u76f8\u540c\u7684\u6545\u969c\u7801\u3002\u7ecf\u8fc7\u8bca\u65ad\uff0c\u6211\u4eec\u53d1\u73b0\u5b9d\u9a6c\u7684\u95ee\u9898\u662f DEF \u55b7\u5c04\u5668\u5835\u585e\uff0c\u5954\u9a70\u7684 DEF \u6cb9\u7bb1\u6f0f\u6db2\uff0c\u800c\u5927\u4f17\u9014\u9510\u7684\u95ee\u9898\u662f NOx \u4f20\u611f\u5668\u6545\u969c\u3002\u867d\u7136 P249E \u4e0d\u662f\u7d27\u6025\u95ee\u9898\uff0c\u4f46\u6211\u4eec\u603b\u662f\u5efa\u8bae\u53ca\u65f6\u4fee\u590d\uff0c\u4ee5\u9632\u6b62\u50ac\u5316\u8f6c\u6362\u5668\u53ef\u80fd\u7684\u635f\u574f\u3002\u6839\u636e\u6211\u4eec\u7684\u7ecf\u9a8c\uff0c\u5b9a\u671f\u66f4\u6362 DEF \u6db2\u548c\u68c0\u67e5 SCR \u7cfb\u7edf\u662f\u907f\u514d\u51fa\u73b0 P249E \u4ee3\u7801\u7684\u6700\u4f73\u65b9\u6cd5\u3002<\/p>\n<\/div>\n<h2 id=\"urgency-and-severity\">\u7d27\u6025\u6027\u548c\u4e25\u91cd\u6027<\/h2>\n<p>P249E \u4ee3\u7801\u672c\u8eab\u5e76\u4e0d\u662f\u975e\u5e38\u7d27\u6025\uff0c\u8f66\u8f86\u5728\u77ed\u671f\u5185\u901a\u5e38\u4ecd\u53ef\u4ee5\u5b89\u5168\u9a7e\u9a76\u3002\u7136\u800c\uff0c\u53ca\u65f6\u8bca\u65ad\u548c\u89e3\u51b3\u95ee\u9898\u975e\u5e38\u91cd\u8981\uff0c\u4ee5\u9632\u6b62 SCR \u7cfb\u7edf\u6216\u50ac\u5316\u8f6c\u6362\u5668\u53ef\u80fd\u7684\u635f\u574f\u3002\u5982\u679c\u53d1\u52a8\u673a\u68c0\u67e5\u706f\u95ea\u70c1\u6216\u5b58\u5728\u5176\u4ed6\u9a7e\u9a76\u6027\u80fd\u95ee\u9898\uff0c\u8bf7\u505c\u6b62\u9a7e\u9a76\u5e76\u5c06\u8f66\u8f86\u62d6\u81f3\u7ecf\u9500\u5546\u6216\u5408\u683c\u7684\u7ef4\u4fee\u5e97\u8fdb\u884c\u7ef4\u4fee\u3002<\/p>\n<h2 id=\"applicability\">\u9002\u7528\u6027<\/h2>\n<p>P249E \u662f\u4e00\u4e2a\u9002\u7528\u4e8e\u8bb8\u591a\u914d\u5907 SCR \u7cfb\u7edf\u7684\u67f4\u6cb9\u8f66\u8f86\u7684\u901a\u7528\u52a8\u529b\u7cfb\u7edf\u4ee3\u7801\uff0c\u5305\u62ec\u798f\u7279\u3001RAM\u3001\u65e5\u4ea7 Titan XD \u4ee5\u53ca\u67d0\u4e9b\u5b9d\u9a6c\u8f66\u578b\u3002\u4e0d\u540c\u54c1\u724c\u548c\u8f66\u578b\u7684\u76f8\u5173\u90e8\u4ef6\u548c\u8bca\u65ad\u6b65\u9aa4\u53ef\u80fd\u7565\u6709\u4e0d\u540c\u3002<\/p>\n<h2 id=\"parts-involved\">\u6d89\u53ca\u7684\u90e8\u4ef6<\/h2>\n<p>P249E \u4ee3\u7801\u76f8\u5173\u7684\u4e3b\u8981\u90e8\u4ef6\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>DEF \u55b7\u5c04\u5668\uff1a<\/strong>\u5c06 DEF \u6db2\u4f53\u55b7\u5165\u6392\u6c14\u6d41<\/li>\n<li><strong>SCR \u50ac\u5316\u5668\uff1a<\/strong>\u901a\u8fc7 DEF \u5c06\u6c2e\u6c27\u5316\u7269 (NOx) \u8f6c\u5316\u4e3a\u65e0\u5bb3\u7684\u6c2e\u6c14\u548c\u6c34<\/li>\n<li><strong>DEF \u6cb9\u7bb1\u548c\u7ba1\u8def\uff1a<\/strong>\u5b58\u50a8\u5e76\u5c06 DEF \u8f93\u9001\u81f3\u55b7\u5c04\u5668<\/li>\n<li><strong>NOx \u4f20\u611f\u5668\uff1a<\/strong>\u6d4b\u91cf SCR \u50ac\u5316\u5668\u4e4b\u524d\u548c\u4e4b\u540e\u7684 NOx \u6c34\u5e73<\/li>\n<\/ul>\n<h2 id=\"common-causes\">\u5e38\u89c1\u539f\u56e0<\/h2>\n<p>\u9020\u6210 DEF \u6d41\u91cf\u8fc7\u9ad8\u548c P249E \u4ee3\u7801\u7684\u6f5c\u5728\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>DEF \u55b7\u5c04\u5668\u5835\u585e\u6216\u6545\u969c<\/li>\n<li>DEF \u6db2\u6c61\u67d3\u6216\u4f7f\u7528\u4e0d\u5f53<\/li>\n<li>DEF \u6cb9\u7bb1\u6216\u7ba1\u8def\u6cc4\u6f0f<\/li>\n<li>NOx \u4f20\u611f\u5668\u6545\u969c<\/li>\n<li>SCR \u50ac\u5316\u5668\u5931\u6548<\/li>\n<\/ul>\n<h2 id=\"diagnosis\">\u8bca\u65ad\u6b65\u9aa4<\/h2>\n<p>\u5904\u7406 P249E \u4ee3\u7801\u7684\u5173\u952e\u6392\u67e5\u6b65\u9aa4\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\u68c0\u67e5 DEF \u6db2\u4f4d\u548c\u8d28\u91cf\uff0c\u5982\u679c\u8fc7\u4f4e\u6216\u88ab\u6c61\u67d3\u5219\u66f4\u6362<\/li>\n<li>\u68c0\u67e5 DEF \u6cb9\u7bb1\u548c\u7ba1\u8def\u662f\u5426\u6709\u6cc4\u6f0f\uff0c\u5e76\u8fdb\u884c\u5fc5\u8981\u7684\u4fee\u590d<\/li>\n<li>\u6d4b\u8bd5 NOx \u4f20\u611f\u5668\uff0c\u8d85\u51fa\u89c4\u683c\u65f6\u66f4\u6362<\/li>\n<li>\u53d6\u4e0b\u5e76\u6e05\u6d01 DEF \u55b7\u5c04\u5668\uff0c\u5982\u6709\u635f\u574f\u5219\u66f4\u6362<\/li>\n<li>\u8bc4\u4f30 SCR \u50ac\u5316\u5668\u7684\u6548\u7387\uff0c\u5982\u5931\u6548\u5219\u66f4\u6362<\/li>\n<\/ol>\n<h2 id=\"repair-costs\">\u7ef4\u4fee\u8d39\u7528<\/h2>\n<ul>\n<li>DEF \u55b7\u5c04\u5668\uff1a$300-600 \u7f8e\u5143 \/ \u20ac275-550 \u6b27\u5143 + 1-2 \u5c0f\u65f6\u5de5\u65f6<\/li>\n<li>SCR \u50ac\u5316\u5668\uff1a$1500-3000 \u7f8e\u5143 \/ \u20ac1400-2750 \u6b27\u5143 + 3-6 \u5c0f\u65f6\u5de5\u65f6<\/li>\n<\/ul>\n<h2 id=\"prevention\">\u9884\u9632\u63aa\u65bd<\/h2>\n<p>\u4e3a\u907f\u514d P249E \u4ee3\u7801\u53ca\u76f8\u5173\u7684 SCR \u7cfb\u7edf\u95ee\u9898\uff1a<\/p>\n<ul>\n<li>\u4fdd\u6301\u9002\u5f53\u7684 DEF \u6db2\u4f4d\u5e76\u4ec5\u4f7f\u7528\u9ad8\u8d28\u91cf\u7684 DEF \u6db2\u4f53<\/li>\n<li>\u7acb\u5373\u5904\u7406\u4efb\u4f55 DEF \u6cc4\u6f0f\u95ee\u9898<\/li>\n<li>\u5b9a\u671f\u68c0\u67e5 SCR \u7cfb\u7edf\u548c\u4f20\u611f\u5668<\/li>\n<\/ul>\n<p>P249E \u4ee3\u7801\u53ef\u80fd\u4e0e\u5176\u4ed6 SCR \u76f8\u5173\u7684 DTC \u4e00\u8d77\u51fa\u73b0\uff0c\u4f8b\u5982 P1C54\u3001P20EE \u548c P056D\u3002\u89e3\u51b3\u8fd9\u4e9b\u4ee3\u7801\u5bf9\u4e8e\u786e\u4fdd\u6b63\u786e\u7684\u6392\u653e\u63a7\u5236\u548c\u53d1\u52a8\u673a\u6027\u80fd\u4e5f\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<h2 id=\"frequently-asked-questions-about-p249e\">\u5173\u4e8e P249E \u7684\u5e38\u89c1\u95ee\u9898<\/h2>\n<h3 id=\"what-does-obd-ii-code-p249e-mean-\">P249E OBD-II \u4ee3\u7801\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/h3>\n<p>P249E \u4ee3\u8868\u201c\u95ed\u73af\u8fd8\u539f\u5242\u55b7\u5c04\u63a7\u5236\u8fbe\u5230\u6781\u9650 &#8211; \u6d41\u91cf\u8fc7\u9ad8\u201d\uff0c\u8868\u793a SCR \u7cfb\u7edf\u7531\u4e8e DEF \u6d41\u91cf\u8fc7\u9ad8\u800c\u5904\u4e8e\u6700\u5927\u64cd\u4f5c\u9650\u5ea6\u3002<\/p>\n<h3 id=\"how-serious-is-code-p249e-is-it-safe-to-keep-driving-\">P249E \u4ee3\u7801\u6709\u591a\u4e25\u91cd\uff1f\u7ee7\u7eed\u9a7e\u9a76\u5b89\u5168\u5417\uff1f<\/h3>\n<p>P249E \u4e0d\u662f\u975e\u5e38\u7d27\u6025\uff0c\u60a8\u901a\u5e38\u53ef\u4ee5\u7ee7\u7eed\u5b89\u5168\u9a7e\u9a76\u4e00\u6bb5\u65f6\u95f4\u3002\u7136\u800c\uff0c\u6700\u597d\u5c3d\u5feb\u8bca\u65ad\u5e76\u4fee\u590d\u95ee\u9898\uff0c\u4ee5\u9632\u6b62 SCR \u7cfb\u7edf\u6216\u50ac\u5316\u8f6c\u6362\u5668\u7684\u6f5c\u5728\u635f\u574f\u3002\u5982\u679c\u53d1\u52a8\u673a\u68c0\u67e5\u706f\u95ea\u70c1\u6216\u60a8\u53d1\u73b0\u9a7e\u9a76\u6027\u80fd\u95ee\u9898\uff0c\u8bf7\u505c\u6b62\u9a7e\u9a76\u5e76\u5c06\u8f66\u8f86\u62d6\u81f3\u7ef4\u4fee\u5e97\u8fdb\u884c\u7ef4\u4fee\u3002<\/p>\n<h3 id=\"what-vehicles-can-get-code-p249e-\">\u54ea\u4e9b\u8f66\u8f86\u53ef\u80fd\u51fa\u73b0 P249E \u4ee3\u7801\uff1f<\/h3>\n<p>\u8bb8\u591a\u914d\u5907 SCR \u7cfb\u7edf\u7684\u67f4\u6cb9\u8f66\u8f86\u90fd\u53ef\u80fd\u9047\u5230 P249E\uff0c\u4f8b\u5982\u798f\u7279\u3001RAM\u3001\u65e5\u4ea7 Titan XD \u548c\u67d0\u4e9b\u5b9d\u9a6c\u8f66\u578b\u3002\u4e0d\u540c\u54c1\u724c\u7684\u76f8\u5173\u90e8\u4ef6\u548c\u8bca\u65ad\u6b65\u9aa4\u53ef\u80fd\u4f1a\u6709\u6240\u4e0d\u540c\u3002<\/p>\n<h3 id=\"what-are-the-main-components-involved-with-p249e-\">P249E \u6d89\u53ca\u7684\u4e3b\u8981\u90e8\u4ef6\u6709\u54ea\u4e9b\uff1f<\/h3>\n<p>\u4e0e P249E \u4ee3\u7801\u76f8\u5173\u7684\u5173\u952e\u90e8\u4ef6\u5305\u62ec DEF \u55b7\u5c04\u5668\u3001SCR \u50ac\u5316\u5668\u3001DEF \u6cb9\u7bb1\u548c\u7ba1\u8def\u4ee5\u53ca NOx \u4f20\u611f\u5668\u3002<\/p>\n<h3 id=\"what-are-the-common-causes-of-code-p249e-\">\u5bfc\u81f4 P249E \u4ee3\u7801\u7684\u5e38\u89c1\u539f\u56e0\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u6f5c\u5728\u539f\u56e0\u5305\u62ec DEF \u55b7\u5c04\u5668\u5835\u585e\/\u6545\u969c\u3001DEF \u6db2\u6c61\u67d3\/\u4e0d\u5f53\u3001DEF \u6cb9\u7bb1\u6216\u7ba1\u8def\u6cc4\u6f0f\u3001NOx \u4f20\u611f\u5668\u6545\u969c\u548c SCR \u50ac\u5316\u5668\u5931\u6548\u3002<\/p>\n<h3 id=\"how-do-you-diagnose-code-p249e-\">\u5982\u4f55\u8bca\u65ad P249E \u4ee3\u7801\uff1f<\/h3>\n<p>\u5173\u952e\u6392\u67e5\u6b65\u9aa4\u5305\u62ec\uff1a<br \/>\n1) \u68c0\u67e5 DEF \u6db2\u4f4d\u548c\u8d28\u91cf\uff0c\u8fc7\u4f4e\u6216\u88ab\u6c61\u67d3\u65f6\u66f4\u6362<br \/>\n2) \u68c0\u67e5 DEF \u662f\u5426\u6cc4\u6f0f\uff0c\u5e76\u8fdb\u884c\u5fc5\u8981\u7684\u4fee\u7406<br \/>\n3) \u6d4b\u8bd5 NOx \u4f20\u611f\u5668\uff0c\u8d85\u51fa\u89c4\u683c\u65f6\u66f4\u6362<br \/>\n4) \u6e05\u6d01 DEF \u55b7\u5c04\u5668\uff0c\u5982\u6709\u635f\u574f\u5219\u66f4\u6362<br \/>\n5) \u8bc4\u4f30 SCR \u50ac\u5316\u5668\u7684\u6548\u7387\uff0c\u5982\u5931\u6548\u5219\u66f4\u6362<\/p>\n<h3 id=\"how-much-does-it-cost-to-fix-code-p249e-\">\u4fee\u590d P249E \u4ee3\u7801\u7684\u8d39\u7528\u662f\u591a\u5c11\uff1f<\/h3>\n<p>\u66f4\u6362 DEF \u55b7\u5c04\u5668\u7684\u8d39\u7528\u901a\u5e38\u4e3a $300-600 \u7f8e\u5143 (\u20ac275-550 \u6b27\u5143)\uff0c\u52a0\u4e0a 1-2 \u5c0f\u65f6\u7684\u4eba\u5de5\u3002SCR \u50ac\u5316\u5668\u7684\u66f4\u6362\u8d39\u7528\u8981\u9ad8\u5f97\u591a\uff0c\u7ea6\u4e3a $1500-3000 \u7f8e\u5143 (\u20ac1400-2750 \u6b27\u5143)\uff0c\u52a0\u4e0a 3-6 \u5c0f\u65f6\u7684\u4eba\u5de5\u3002<\/p>\n<h3 id=\"how-can-i-prevent-getting-code-p249e-again-\">\u5982\u4f55\u9632\u6b62 P249E \u4ee3\u7801\u518d\u6b21\u51fa\u73b0\uff1f<\/h3>\n<p>\u4e3a\u4e86\u907f\u514d P249E \u95ee\u9898\u7684\u590d\u53d1\uff1a<\/p>\n<ul>\n<li>\u4fdd\u6301 DEF \u6db2\u4f4d\u9002\u5f53\uff0c\u5e76\u4ec5\u4f7f\u7528\u9ad8\u8d28\u91cf\u7684 DEF \u6db2\u4f53<\/li>\n<li>\u7acb\u5373\u4fee\u590d\u4efb\u4f55 DEF \u6cc4\u6f0f<\/li>\n<li>\u5b9a\u671f\u68c0\u67e5 SCR \u7cfb\u7edf\u548c\u4f20\u611f\u5668<\/li>\n<\/ul>\n<h3 id=\"can-low-def-fluid-cause-code-p249e-\">DEF \u6db2\u4f4d\u8fc7\u4f4e\u4f1a\u5bfc\u81f4 P249E \u4ee3\u7801\u5417\uff1f<\/h3>\n<p>\u662f\u7684\uff0cDEF \u6db2\u4f4d\u8fc7\u4f4e\u53ef\u80fd\u662f\u539f\u56e0\u4e4b\u4e00\u3002\u5f53 DEF \u6db2\u4f4d\u8fc7\u4f4e\u65f6\uff0cSCR \u7cfb\u7edf\u53ef\u80fd\u4f1a\u901a\u8fc7\u55b7\u5c04\u8fc7\u591a\u7684 DEF \u6765\u8fdb\u884c\u8865\u507f\u3002\u56e0\u6b64\uff0c\u59cb\u7ec8\u4fdd\u6301 DEF \u6cb9\u7bb1\u5145\u8db3\u3002<\/p>\n<h3 id=\"can-a-bad-def-injector-cause-code-p249e-\">DEF \u55b7\u5c04\u5668\u6545\u969c\u4f1a\u5bfc\u81f4 P249E \u4ee3\u7801\u5417\uff1f<\/h3>\n<p>\u5f53\u7136\u53ef\u4ee5\u3002DEF \u55b7\u5c04\u5668\u5835\u585e\u6216\u6545\u969c\u53ef\u80fd\u5bfc\u81f4 DEF \u6d41\u91cf\u8fc7\u591a\uff0c\u4ece\u800c\u89e6\u53d1 P249E \u4ee3\u7801\u3002\u53ef\u80fd\u9700\u8981\u6e05\u6d01\u6216\u66f4\u6362\u55b7\u5c04\u5668\u3002<\/p>\n<h3 id=\"can-a-faulty-nox-sensor-cause-code-p249e-\">NOx \u4f20\u611f\u5668\u6545\u969c\u4f1a\u5bfc\u81f4 P249E \u4ee3\u7801\u5417\uff1f<\/h3>\n<p>\u662f\u7684\uff0cNOx \u4f20\u611f\u5668\u6545\u969c\u53ef\u80fd\u4f1a\u9519\u8bef\u5730\u8bfb\u53d6 NOx \u6c34\u5e73\uff0c\u4f7f SCR \u7cfb\u7edf\u55b7\u5c04\u8fc7\u591a\u7684 DEF\u3002\u6d4b\u8bd5\u5e76\u66f4\u6362\u6545\u969c\u7684 NOx \u4f20\u611f\u5668\u662f\u91cd\u8981\u7684\u6392\u67e5\u6b65\u9aa4\u3002<\/p>\n<h3 id=\"can-an-scr-catalyst-failure-cause-code-p249e-\">SCR \u50ac\u5316\u5668\u5931\u6548\u4f1a\u5bfc\u81f4 P249E \u4ee3\u7801\u5417\uff1f<\/h3>\n<p>\u4f1a\u7684\u3002\u5982\u679c SCR \u50ac\u5316\u5668\u6548\u7387\u4f4e\u4e0b\uff0c\u7cfb\u7edf\u53ef\u80fd\u4f1a\u901a\u8fc7\u55b7\u5c04\u8fc7\u91cf DEF \u6765\u8865\u507f\uff0c\u4ece\u800c\u5bfc\u81f4 P249E \u4ee3\u7801\u3002SCR \u50ac\u5316\u5668\u5931\u6548\u65f6\u9700\u8981\u66f4\u6362\u3002<\/p>\n<h3 id=\"can-contaminated-def-fluid-cause-code-p249e-\">\u53d7\u6c61\u67d3\u7684 DEF \u6db2\u4f53\u4f1a\u5bfc\u81f4 P249E \u4ee3\u7801\u5417\uff1f<\/h3>\n<p>\u4f7f\u7528\u53d7\u6c61\u67d3\u3001\u4f4e\u8d28\u91cf\u6216\u4e0d\u6b63\u786e\u7684 DEF \u6db2\u4f53\u53ef\u80fd\u4f1a\u5bfc\u81f4 SCR \u7cfb\u7edf\u95ee\u9898\uff0c\u4f8b\u5982 P249E\u3002\u59cb\u7ec8\u4f7f\u7528\u7b26\u5408 ISO 22241 \u6807\u51c6\u7684\u9ad8\u8d28\u91cf DEF \u6db2\u4f53\u3002<\/p>\n<h3 id=\"can-a-leaking-def-tank-cause-code-p249e-\">DEF \u6cb9\u7bb1\u6cc4\u6f0f\u4f1a\u5bfc\u81f4 P249E \u4ee3\u7801\u5417\uff1f<\/h3>\n<p>\u662f\u7684\uff0cDEF \u6cb9\u7bb1\u6216\u7ba1\u8def\u7684\u6cc4\u6f0f\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u8fdb\u6c14\uff0c\u5bfc\u81f4 DEF \u6ce8\u5165\u4e0d\u7a33\u5b9a\u5e76\u89e6\u53d1 P249E\u3002\u68c0\u67e5\u662f\u5426\u6709\u660e\u663e\u7684\u6cc4\u6f0f\u5e76\u8fdb\u884c\u5fc5\u8981\u7684\u4fee\u590d\u3002<\/p>\n<h3 id=\"can-a-software-update-fix-code-p249e-\">\u8f6f\u4ef6\u66f4\u65b0\u80fd\u4fee\u590d P249E \u4ee3\u7801\u5417\uff1f<\/h3>\n<p>\u6709\u53ef\u80fd\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u8f6f\u4ef6\u66f4\u65b0\u53ef\u80fd\u4f1a\u4f18\u5316 SCR \u7cfb\u7edf\u7684\u63a7\u5236\u53c2\u6570\u5e76\u89e3\u51b3 P249E \u4ee3\u7801\u3002\u7136\u800c\uff0c\u66f4\u5e38\u89c1\u7684\u662f\u786c\u4ef6\u95ee\u9898\u9700\u8981\u7269\u7406\u4fee\u7406\u3002<\/p>\n<h3 id=\"can-code-p249e-cause-limp-mode-\">P249E \u4ee3\u7801\u4f1a\u5bfc\u81f4\u8f66\u8f86\u8fdb\u5165\u8ddb\u884c\u6a21\u5f0f\u5417\uff1f<\/h3>\n<p>P249E \u4ee3\u7801\u672c\u8eab\u901a\u5e38\u4e0d\u4f1a\u89e6\u53d1\u8ddb\u884c\u6a21\u5f0f\u3002\u7136\u800c\uff0c\u5982\u679c\u672a\u89e3\u51b3\u6839\u672c\u95ee\u9898\uff0c\u6700\u7ec8\u53ef\u80fd\u4f1a\u5bfc\u81f4 SCR \u7cfb\u7edf\u6545\u969c\u5e76\u542f\u7528\u8ddb\u884c\u6a21\u5f0f\u4ee5\u4fdd\u62a4\u53d1\u52a8\u673a\u3002<\/p>\n<h3 id=\"can-code-p249e-cause-other-drivability-symptoms-\">P249E \u4ee3\u7801\u4f1a\u5bfc\u81f4\u5176\u4ed6\u9a7e\u9a76\u6027\u80fd\u75c7\u72b6\u5417\uff1f<\/h3>\n<p>\u60a8\u53ef\u80fd\u4f1a\u6ce8\u610f\u5230\u7531\u4e8e SCR \u7cfb\u7edf\u672a\u6b63\u5e38\u5de5\u4f5c\uff0c\u53d1\u52a8\u673a\u529f\u7387\u6216\u71c3\u6cb9\u6548\u7387\u4e0b\u964d\u3002\u53d1\u52a8\u673a\u53ef\u80fd\u8fd0\u884c\u4e0d\u7a33\u5b9a\u6216\u51fa\u73b0\u505c\u987f\u73b0\u8c61\uff0c\u5e76\u4e14\u53d1\u52a8\u673a\u68c0\u67e5\u706f\u4f1a\u4eae\u8d77\u3002<\/p>\n<h3 id=\"what-other-codes-may-appear-with-p249e-\">\u4e0e P249E \u4e00\u8d77\u51fa\u73b0\u7684\u5176\u4ed6\u4ee3\u7801\u6709\u54ea\u4e9b\uff1f<\/h3>\n<p>\u4e0e P249E \u5e38\u4e00\u8d77\u51fa\u73b0\u7684 SCR \u7cfb\u7edf\u76f8\u5173\u4ee3\u7801\u5305\u62ec P20EE (NOx \u8d85\u6807)\u3001P1C54 (SCR \u6548\u7387\u4f4e\u4e8e\u9608\u503c) \u548c P056D (\u8fd8\u539f\u5242\u8d28\u91cf\u8fc7\u4f4e)\u3002\u5bf9\u8fd9\u4e9b\u95ee\u9898\u7684\u8bca\u65ad\u548c\u4fee\u590d\u4e5f\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<h3 id=\"can-you-drive-with-code-p249e-permanently-\">P249E \u4ee3\u7801\u80fd\u6c38\u4e45\u9a7e\u9a76\u5417\uff1f<\/h3>\n<p>\u867d\u7136\u5728\u4e00\u6bb5\u65f6\u95f4\u5185\u7ee7\u7eed\u9a7e\u9a76\u5e26\u6709 P249E \u4ee3\u7801\u7684\u8f66\u8f86\u662f\u53ef\u80fd\u7684\uff0c\u4f46\u4ece\u957f\u8fdc\u6765\u770b\u5e76\u4e0d\u5efa\u8bae\u8fd9\u6837\u505a\u3002\u8fc7\u91cf\u4f7f\u7528 DEF \u4f1a\u635f\u574f SCR \u50ac\u5316\u5668\uff0c\u5e76\u5bfc\u81f4\u8f66\u8f86\u672a\u901a\u8fc7\u6392\u653e\u6d4b\u8bd5\u3002\u8bf7\u6b63\u786e\u4fee\u590d\u6839\u672c\u95ee\u9898\u3002<\/p>\n<h3 id=\"how-often-should-the-scr-system-be-inspected-to-prevent-p249e-\">\u4e3a\u4e86\u9632\u6b62 P249E\uff0cSCR \u7cfb\u7edf\u5e94\u591a\u4e45\u68c0\u67e5\u4e00\u6b21\uff1f<\/h3>\n<p>\u6bcf\u5e74\u81f3\u5c11\u68c0\u67e5\u4e00\u6b21 SCR \u7cfb\u7edf\u548c\u4f20\u611f\u5668\uff0c\u6216\u8005\u6bcf 30,000 \u516c\u91cc (18,000 \u82f1\u91cc)\u3002\u5982\u679c\u8f66\u8f86\u7ecf\u5e38\u8fdb\u884c\u77ed\u9014\u884c\u9a76\u6216\u957f\u65f6\u95f4\u6020\u901f\uff0c\u53ef\u80fd\u9700\u8981\u66f4\u9891\u7e41\u7684\u68c0\u67e5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ec0\u4e48\u662f P249E \u6545\u969c\u7801\uff1f OBD-II \u8bca\u65ad\u6545\u969c\u4ee3\u7801 (DTC) P249E \u8868\u793a \u201c\u95ed\u73af\u8fd8\u539f\u5242\u55b7\u5c04\u63a7\u5236\u8fbe<\/p>\n","protected":false},"author":13,"featured_media":287917,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-287915","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\/287915","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=287915"}],"version-history":[{"count":2,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/posts\/287915\/revisions"}],"predecessor-version":[{"id":287921,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/posts\/287915\/revisions\/287921"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/media\/287917"}],"wp:attachment":[{"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/media?parent=287915"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/categories?post=287915"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/tags?post=287915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}