{"id":287367,"date":"2024-10-21T10:39:00","date_gmt":"2024-10-21T10:39:00","guid":{"rendered":"https:\/\/www.ziptuning.com\/zh\/?p=287367"},"modified":"2024-11-01T12:49:43","modified_gmt":"2024-11-01T12:49:43","slug":"p1404-exhaust-flap-position-sensor-circuit-malfunction-some-manufacturers","status":"publish","type":"post","link":"https:\/\/www.ziptuning.com\/zh\/blog\/p1404-exhaust-flap-position-sensor-circuit-malfunction-some-manufacturers\/","title":{"rendered":"P1404 &#8211; \u6392\u6c14\u9600\u95e8\u4f4d\u7f6e\u4f20\u611f\u5668\u7535\u8def\u6545\u969c\uff08\u67d0\u4e9b\u5236\u9020\u5546\uff09"},"content":{"rendered":"<h2 id=\"p1404-code-egr-closed-position-performance\">P1404\u6545\u969c\u7801\uff1aEGR\u5173\u95ed\u4f4d\u7f6e\u6027\u80fd<\/h2>\n<p>P1404\u662f\u901a\u7528\u6c7d\u8f66\u8f66\u8f86\u7684\u7279\u5b9a\u8bca\u65ad\u6545\u969c\u7801\uff08DTC\uff09\uff0c\u8868\u793a\u53d1\u52a8\u673a\u63a7\u5236\u6a21\u5757\uff08ECM\uff09\u68c0\u6d4b\u5230\u6392\u6c14\u518d\u5faa\u73af\uff08EGR\uff09\u9600\u5361\u5728\u6253\u5f00\u4f4d\u7f6e\u3002<\/p>\n<div class=\"workshop-experience-text\">\n<p>\u5728\u6211\u4eec\u7684\u8f66\u95f4\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u770b\u5230P1404\u6545\u969c\u7801\uff0c\u5c24\u5176\u662f\u5728\u6b27\u6d32\u54c1\u724c\u7684\u8f66\u8f86\u4e0a\uff0c\u6bd4\u5982\u5954\u9a70\u3001\u5b9d\u9a6c\u548c\u5927\u4f17\u3002\u5c31\u5728\u4e0a\u5468\uff0c\u4e00\u4f4d\u5ba2\u6237\u5e26\u7740\u4ed6\u4eec\u76841997\u6b3e\u5954\u9a70E300D\u6765\u5230\u5e97\u91cc\uff0c\u68c0\u67e5\u5f15\u64ce\u706f\u4eae\u8d77\u5e76\u8fdb\u5165\u4e86\u8ddb\u884c\u6a21\u5f0f\u3002\u7ecf\u8fc7\u4e00\u4e9b\u8bca\u65ad\u540e\uff0c\u6211\u4eec\u8ffd\u8e2a\u5230P1404 EGR\u6545\u969c\u7801\u3002\u6211\u4eec\u6e05\u6d01\u4e86EGR\u9600\u548c\u901a\u9053\uff0c\u66f4\u6362\u4e86\u4f4d\u7f6e\u4f20\u611f\u5668\uff0c\u4f46\u6545\u969c\u7801\u4f9d\u7136\u5b58\u5728\u3002\u6700\u540e\u53d1\u73b0EGR\u9600\u7684\u7ebf\u8def\u53d7\u635f\uff0c\u53ef\u80fd\u662f\u7531\u4e8e\u8be5\u533a\u57df\u7684\u9ad8\u6e29\u5f15\u8d77\u7684\u3002\u4fee\u590d\u7ebf\u8def\u540e\uff0c\u6545\u969c\u7801\u5f7b\u5e95\u6d88\u5931\u4e86\u3002\u8fd9\u662f\u8fd9\u4e9b\u8001\u5316\u8f66\u8f86\u4e0a\u7684\u5e38\u89c1\u95ee\u9898\u533a\u57df\u3002\u6211\u4eec\u5728\u5b9d\u9a6cM57\u548c\u5927\u4f17TDI\u53d1\u52a8\u673a\u4e0a\u4e5f\u9047\u5230\u8fc7\u7c7b\u4f3c\u95ee\u9898\u3002\u5173\u952e\u662f\u8981\u8fdb\u884c\u5f7b\u5e95\u7684\u8bca\u65ad\uff0c\u56e0\u4e3aEGR\u9600\u672c\u8eab\u5e76\u4e0d\u603b\u662f\u95ee\u9898\u7684\u6839\u6e90\u3002<\/p>\n<\/div>\n<h2 id=\"urgency-and-severity\">\u7d27\u6025\u6027\u548c\u4e25\u91cd\u6027<\/h2>\n<p><strong>\u7acb\u5373\u505c\u6b62\u9a7e\u9a76\u3002<\/strong>\u5361\u5728\u6253\u5f00\u4f4d\u7f6e\u7684EGR\u9600\u4f1a\u5bfc\u81f4\u6020\u901f\u4e0d\u7a33\u3001\u7184\u706b\u3001\u71c3\u6cb9\u6d88\u8017\u589e\u52a0\uff0c\u5e76\u53ef\u80fd\u5bf9\u53d1\u52a8\u673a\u9020\u6210\u4e25\u91cd\u635f\u574f\u3002\u8f66\u8f86\u5e94\u62d6\u81f3\u7ef4\u4fee\u7ad9\u6216\u7ecf\u9500\u5546\u5904\u8fdb\u884c\u8bca\u65ad\u548c\u4fee\u7406\u3002<\/p>\n<h2 id=\"technical-details\">\u6280\u672f\u8be6\u60c5<\/h2>\n<p>ECM\u76d1\u63a7EGR\u9600\u4f4d\u7f6e\u4f20\u611f\u5668\uff0c\u8be5\u4f20\u611f\u5668\u662f\u4e00\u4e2a\u7535\u4f4d\u8ba1\uff0c\u63d0\u4f9b\u5173\u4e8eEGR\u9600\u9500\u9489\u5b9e\u9645\u4f4d\u7f6e\u7684\u53cd\u9988\u3002\u5f53ECM\u547d\u4ee4EGR\u9600\u5173\u95ed\u65f6\uff0c\u9884\u671f\u4f20\u611f\u5668\u7535\u538b\u5e94\u4f4e\u4e8e0.29V\u3002\u5982\u679c\u7535\u538b\u4fdd\u6301\u57280.29V\u4ee5\u4e0a\uff0cECM\u5c06\u5224\u65ad\u9600\u95e8\u5361\u5728\u6253\u5f00\u4f4d\u7f6e\u5e76\u8bbe\u7f6eP1404\u6545\u969c\u7801\u3002<\/p>\n<p>\u5728\u5927\u591a\u6570\u5176\u4ed6\u54c1\u724c\u8f66\u8f86\u4e0a\uff0c\u5361\u5728\u6253\u5f00\u4f4d\u7f6e\u7684EGR\u9600\u4f1a\u89e6\u53d1\u901a\u7528\u7684OBD-II\u4ee3\u7801P0404\u3002<\/p>\n<h2 id=\"parts-involved\">\u76f8\u5173\u90e8\u4ef6<\/h2>\n<ul>\n<li><strong>EGR\u9600\uff1a<\/strong>\u5141\u8bb8\u4e00\u90e8\u5206\u5e9f\u6c14\u518d\u5faa\u73af\u56de\u8fdb\u6c14\u6b67\u7ba1\uff0c\u4ee5\u964d\u4f4e\u5cf0\u503c\u71c3\u70e7\u6e29\u5ea6\u5e76\u51cf\u5c11\u6c2e\u6c27\u5316\u7269\uff08NOx\uff09\u6392\u653e<\/li>\n<li><strong>EGR\u9600\u4f4d\u7f6e\u4f20\u611f\u5668\uff1a<\/strong>\u5b89\u88c5\u5728EGR\u9600\u4e0a\u7684\u7535\u4f4d\u8ba1\uff0c\u5411ECM\u63d0\u4f9b\u9600\u9500\u4f4d\u7f6e\u7684\u7535\u538b\u4fe1\u53f7<\/li>\n<li><strong>\u53d1\u52a8\u673a\u63a7\u5236\u6a21\u5757\uff08ECM\uff09\uff1a<\/strong>\u63a7\u5236EGR\u7cfb\u7edf\u5e76\u76d1\u63a7\u4f4d\u7f6e\u4f20\u611f\u5668\u7684\u5408\u7406\u6027<\/li>\n<\/ul>\n<h2 id=\"common-causes\">\u5e38\u89c1\u539f\u56e0<\/h2>\n<p>\u5f15\u53d1P1404\u6545\u969c\u7801\u7684\u6f5c\u5728\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>EGR\u9600\u6545\u969c\uff08\u6700\u5e38\u89c1\uff09<\/li>\n<li>\u78b3\u79ef\u7d2f\u9650\u5236\u4e86EGR\u9600\u7684\u8fd0\u52a8<\/li>\n<li>EGR\u9600\u4f4d\u7f6e\u4f20\u611f\u5668\u6545\u969c<\/li>\n<li>EGR\u9600\u63a7\u5236\u6216\u4f4d\u7f6e\u4f20\u611f\u5668\u7535\u8def\u4e2d\u7684\u7ebf\u8def\u95ee\u9898<\/li>\n<li>ECM\u6545\u969c\uff08\u7f55\u89c1\uff09<\/li>\n<\/ol>\n<h2 id=\"diagnosis-steps\">\u8bca\u65ad\u6b65\u9aa4<\/h2>\n<ol>\n<li>\u9a8c\u8bc1\u6020\u901f\u8d28\u91cf\u5dee\u548c\u53ef\u80fd\u7684\u7184\u706b\u60c5\u51b5<\/li>\n<li>\u5728\u53d1\u52a8\u673a\u6020\u901f\u65f6\uff0c\u4f7f\u7528\u4e07\u7528\u8868\u68c0\u67e5\u4f20\u611f\u5668\u8fde\u63a5\u5668\u5904\u7684EGR\u9600\u4f4d\u7f6e\u4f20\u611f\u5668\u7535\u538b\u3002\u6b63\u5e38\u7535\u538b\u8303\u56f4\u4e3a0.14-1.07V\u3002<\/li>\n<li>\u5982\u679c\u7535\u538b\u8d85\u8fc70.29V\uff0c\u65ad\u5f00EGR\u9600\uff0c\u770b\u770b\u6020\u901f\u8d28\u91cf\u662f\u5426\u6062\u590d\u6b63\u5e38\u3002\u5982\u679c\u662f\uff0cEGR\u9600\u53ef\u80fd\u5361\u5728\u6253\u5f00\u4f4d\u7f6e\u3002<\/li>\n<li>\u68c0\u67e5EGR\u9600\u548cECM\u4e4b\u95f4\u7684\u53c2\u8003\u7535\u538b\u3001\u63a5\u5730\u548c\u4fe1\u53f7\u7ebf\u8def\u662f\u5426\u6709\u65ad\u8def\u3001\u77ed\u8def\u6216\u9ad8\u963b\u3002<\/li>\n<\/ol>\n<h2 id=\"repair-options\">\u7ef4\u4fee\u9009\u9879<\/h2>\n<ul>\n<li>\u66f4\u6362\u6545\u969c\u7684EGR\u9600<\/li>\n<li>\u6e05\u6d01EGR\u9600\u548c\u901a\u9053\u4e2d\u7684\u78b3\u6c89\u79ef\u7269<\/li>\n<li>\u4fee\u590dEGR\u7535\u8def\u4e2d\u7684\u7ebf\u8def\u95ee\u9898<\/li>\n<li>\u66f4\u6362\u6545\u969c\u7684EGR\u9600\u4f4d\u7f6e\u4f20\u611f\u5668<\/li>\n<li>\u5982\u679c\u627e\u4e0d\u5230\u5176\u4ed6\u6545\u969c\uff0c\u6700\u540e\u53ef\u80fd\u9700\u8981\u66f4\u6362ECM<\/li>\n<\/ul>\n<h2 id=\"prevention\">\u9884\u9632\u63aa\u65bd<\/h2>\n<ul>\n<li>\u4f7f\u7528\u9ad8\u54c1\u8d28\u7684\u71c3\u6cb9\uff0c\u4ee5\u5c3d\u91cf\u51cf\u5c11EGR\u7cfb\u7edf\u4e2d\u7684\u78b3\u79ef\u7d2f<\/li>\n<li>\u53ca\u65f6\u89e3\u51b3\u4e0eEGR\u76f8\u5173\u7684\u6545\u969c\u7801\uff0c\u9632\u6b62\u53d1\u52a8\u673a\u8fc7\u5ea6\u78e8\u635f<\/li>\n<li>\u4fdd\u6301\u53d1\u52a8\u673a\u7684\u6574\u4f53\u826f\u597d\u72b6\u6001<\/li>\n<\/ul>\n<h2 id=\"repair-cost\">\u7ef4\u4fee\u6210\u672c<\/h2>\n<p>\u7ef4\u4fee\u8d39\u7528\u53ef\u80fd\u56e0\u6839\u672c\u539f\u56e0\u4e0d\u540c\u800c\u6709\u6240\u53d8\u5316\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u90e8\u4ef6<\/th>\n<th>\u8d39\u7528\uff08\u7f8e\u5143\uff09<\/th>\n<th>\u8d39\u7528\uff08\u6b27\u5143\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>EGR\u9600<\/td>\n<td>$120 &#8211; $500<\/td>\n<td>\u20ac100 &#8211; \u20ac420<\/td>\n<\/tr>\n<tr>\n<td>EGR\u4f4d\u7f6e\u4f20\u611f\u5668<\/td>\n<td>$80 &#8211; $200<\/td>\n<td>\u20ac67 &#8211; \u20ac170<\/td>\n<\/tr>\n<tr>\n<td>\u4eba\u5de5\uff081\u5c0f\u65f6\uff09<\/td>\n<td>$80 &#8211; $150<\/td>\n<td>\u20ac67 &#8211; \u20ac125<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5178\u578b\u7684\u603b\u7ef4\u4fee\u8d39\u7528\u8303\u56f4\u4e3a200 &#8211; 700\u7f8e\u5143\uff08170 &#8211; 600\u6b27\u5143\uff09\u3002<\/p>\n<h2 id=\"related-codes\">\u76f8\u5173\u6545\u969c\u7801<\/h2>\n<p>\u4e0eP1404\u4e00\u8d77\u53ef\u80fd\u51fa\u73b0\u7684\u5176\u4ed6\u6545\u969c\u7801\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p0401-exhaust-gas-recirculation-flow-insufficient-detected-a-technical-description\/\" title=\"P0401 - EGR\u6d41\u91cf\u4e0d\u8db3\">P0401 &#8211; EGR\u6d41\u91cf\u4e0d\u8db3<\/a><\/li>\n<li>P0406 &#8211; EGR\u4f20\u611f\u5668\u8d85\u51fa\u8303\u56f4<\/li>\n<\/ul>\n<p>\u53ca\u65f6\u8bca\u65ad\u548c\u4fee\u590dP1404\u6545\u969c\u7801\u5bf9\u9632\u6b62\u9a7e\u9a76\u95ee\u9898\u548c\u53d1\u52a8\u673a\u635f\u574f\u81f3\u5173\u91cd\u8981\u3002\u5efa\u8bae\u54a8\u8be2\u4e13\u4e1a\u6280\u672f\u4eba\u5458\u83b7\u53d6\u5e2e\u52a9\u3002<\/p>\n<h2 id=\"frequently-asked-questions-about-p1404-code\">\u5173\u4e8eP1404\u6545\u969c\u7801\u7684\u5e38\u89c1\u95ee\u9898<\/h2>\n<h3 id=\"what-does-the-p1404-code-mean-\">P1404\u6545\u969c\u7801\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/h3>\n<p>P1404\u662f\u201cEGR\u5173\u95ed\u4f4d\u7f6e\u6027\u80fd\u201d\u7684\u8bca\u65ad\u6545\u969c\u7801\uff0c\u8868\u793a\u53d1\u52a8\u673a\u63a7\u5236\u6a21\u5757\uff08ECM\uff09\u68c0\u6d4b\u5230\u6392\u6c14\u518d\u5faa\u73af\uff08EGR\uff09\u9600\u5361\u5728\u6253\u5f00\u4f4d\u7f6e\u3002<\/p>\n<h3 id=\"how-serious-is-a-p1404-code-\">P1404\u6545\u969c\u7801\u6709\u591a\u4e25\u91cd\uff1f<\/h3>\n<p>P1404\u6545\u969c\u7801\u975e\u5e38\u4e25\u91cd\u3002\u5e94\u7acb\u5373\u505c\u6b62\u9a7e\u9a76\u5e76\u4fee\u7406\u8f66\u8f86\u3002\u5e26\u7740\u5361\u5728\u6253\u5f00\u4f4d\u7f6e\u7684EGR\u9600\u884c\u9a76\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6020\u901f\u4e0d\u7a33\u3001\u7184\u706b\u3001\u71c3\u6cb9\u6d88\u8017\u589e\u52a0\uff0c\u5e76\u53ef\u80fd\u5bf9\u53d1\u52a8\u673a\u9020\u6210\u4e25\u91cd\u635f\u574f\u3002<\/p>\n<h3 id=\"is-it-safe-to-drive-with-a-p1404-code-\">\u5e26\u7740P1404\u6545\u969c\u7801\u884c\u9a76\u5b89\u5168\u5417\uff1f<\/h3>\n<p>\u4e0d\u5b89\u5168\u3002\u8f66\u8f86\u5e94\u62d6\u81f3\u7ef4\u4fee\u7ad9\u6216\u7ecf\u9500\u5546\u5904\u8fdb\u884c\u8bca\u65ad\u548c\u4fee\u7406\uff0c\u4ee5\u9632\u6b62\u8fdb\u4e00\u6b65\u7684\u53d1\u52a8\u673a\u635f\u574f\u3002<\/p>\n<h3 id=\"what-are-the-symptoms-of-a-p1404-code-\">P1404\u6545\u969c\u7801\u7684\u75c7\u72b6\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>P1404\u6545\u969c\u7801\u7684\u75c7\u72b6\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u68c0\u67e5\u5f15\u64ce\u706f\u4eae\u8d77<\/li>\n<li>\u6020\u901f\u4e0d\u7a33\uff0c\u53ef\u80fd\u7184\u706b<\/li>\n<li>\u52a0\u901f\u65f6\u7684\u8fdf\u6ede<\/li>\n<li>\u71c3\u6cb9\u6d88\u8017\u589e\u52a0<\/li>\n<\/ul>\n<h3 id=\"what-causes-a-p1404-code-\">P1404\u6545\u969c\u7801\u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>P1404\u6545\u969c\u7801\u7684\u6f5c\u5728\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>EGR\u9600\u6545\u969c\uff08\u6700\u5e38\u89c1\uff09<\/li>\n<li>\u78b3\u79ef\u7d2f\u9650\u5236\u4e86EGR\u9600\u7684\u8fd0\u52a8<\/li>\n<li>EGR\u9600\u4f4d\u7f6e\u4f20\u611f\u5668\u6545\u969c<\/li>\n<li>EGR\u9600\u63a7\u5236\u6216\u4f4d\u7f6e\u4f20\u611f\u5668\u7535\u8def\u4e2d\u7684\u7ebf\u8def\u95ee\u9898<\/li>\n<li>ECM\u6545\u969c\uff08\u7f55\u89c1\uff09<\/li>\n<\/ul>\n<h3 id=\"how-do-you-diagnose-a-p1404-code-\">\u5982\u4f55\u8bca\u65adP1404\u6545\u969c\u7801\uff1f<\/h3>\n<p>\u8bca\u65adP1404\u6545\u969c\u7801\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u9a8c\u8bc1\u6020\u901f\u8d28\u91cf\u5dee\u548c\u53ef\u80fd\u7684\u7184\u706b\u60c5\u51b5<\/li>\n<li>\u68c0\u67e5\u53d1\u52a8\u673a\u6020\u901f\u65f6\u4f20\u611f\u5668\u8fde\u63a5\u5668\u5904\u7684EGR\u9600\u4f4d\u7f6e\u4f20\u611f\u5668\u7535\u538b\u3002\u6b63\u5e38\u8303\u56f4\u662f0.14-1.07V\u3002<\/li>\n<li>\u5982\u679c\u7535\u538b\u8d85\u8fc70.29V\uff0c\u65ad\u5f00EGR\u9600\uff0c\u770b\u770b\u6020\u901f\u8d28\u91cf\u662f\u5426\u6062\u590d\u6b63\u5e38\u3002\u5982\u679c\u662f\uff0cEGR\u9600\u53ef\u80fd\u5361\u5728\u6253\u5f00\u4f4d\u7f6e\u3002<\/li>\n<li>\u68c0\u67e5EGR\u9600\u548cECM\u4e4b\u95f4\u7684\u53c2\u8003\u7535\u538b\u3001\u63a5\u5730\u548c\u4fe1\u53f7\u7ebf\u8def\u662f\u5426\u6709\u65ad\u8def\u3001\u77ed\u8def\u6216\u9ad8\u963b\u3002<\/li>\n<\/ol>\n<h3 id=\"how-do-you-fix-a-p1404-code-\">\u5982\u4f55\u4fee\u590dP1404\u6545\u969c\u7801\uff1f<\/h3>\n<p>\u4fee\u590dP1404\u6545\u969c\u7801\u53ef\u80fd\u9700\u8981\u8fdb\u884c\u4ee5\u4e0b\u4e00\u9879\u6216\u591a\u9879\u7ef4\u4fee\uff1a<\/p>\n<ul>\n<li>\u66f4\u6362\u6545\u969c\u7684EGR\u9600<\/li>\n<li>\u6e05\u6d01EGR\u9600\u548c\u901a\u9053\u4e2d\u7684\u78b3\u79ef\u7d2f\u7269<\/li>\n<li>\u4fee\u590dEGR\u7535\u8def\u4e2d\u7684\u7ebf\u8def\u95ee\u9898<\/li>\n<li>\u66f4\u6362\u6545\u969c\u7684EGR\u9600\u4f4d\u7f6e\u4f20\u611f\u5668<\/li>\n<li>\u5982\u679c\u627e\u4e0d\u5230\u5176\u4ed6\u6545\u969c\uff0c\u6781\u5c11\u6570\u60c5\u51b5\u4e0b\u53ef\u80fd\u9700\u8981\u66f4\u6362ECM<\/li>\n<\/ul>\n<h3 id=\"can-a-p1404-code-clear-itself-\">P1404\u6545\u969c\u7801\u4f1a\u81ea\u52a8\u6e05\u9664\u5417\uff1f<\/h3>\n<p>\u5982\u679c\u5f15\u53d1P1404\u6545\u969c\u7801\u7684\u6761\u4ef6\u662f\u95f4\u6b47\u6027\u7684\uff0c\u6545\u969c\u7801\u53ef\u80fd\u4f1a\u81ea\u884c\u6e05\u9664\u3002\u7136\u800c\uff0c\u7531\u4e8e\u5361\u5728\u6253\u5f00\u4f4d\u7f6e\u7684EGR\u9600\u53ef\u80fd\u4f1a\u5bfc\u81f4\u9a7e\u9a76\u95ee\u9898\u548c\u53d1\u52a8\u673a\u635f\u574f\uff0c\u6700\u597d\u5c3d\u5feb\u5bf9\u6545\u969c\u7801\u8fdb\u884c\u8bca\u65ad\u548c\u4fee\u7406\u3002<\/p>\n<h3 id=\"is-the-p1404-code-specific-to-certain-makes-\">P1404\u6545\u969c\u7801\u662f\u5426\u7279\u5b9a\u4e8e\u67d0\u4e9b\u54c1\u724c\uff1f<\/h3>\n<p>P1404\u6545\u969c\u7801\u662f\u901a\u7528\u6c7d\u8f66\uff08GM\uff09\u8f66\u8f86\u7684\u7279\u5b9a\u4ee3\u7801\u3002\u5728\u5927\u591a\u6570\u5176\u4ed6\u54c1\u724c\u8f66\u8f86\u4e0a\uff0c\u5361\u5728\u6253\u5f00\u4f4d\u7f6e\u7684EGR\u9600\u4f1a\u89e6\u53d1\u901a\u7528\u7684P0404\u4ee3\u7801\u3002<\/p>\n<h3 id=\"what-is-the-egr-system-and-what-does-it-do-\">\u4ec0\u4e48\u662fEGR\u7cfb\u7edf\uff0c\u5b83\u6709\u4ec0\u4e48\u4f5c\u7528\uff1f<\/h3>\n<p>\u6392\u6c14\u518d\u5faa\u73af\uff08EGR\uff09\u7cfb\u7edf\u5c06\u4e00\u90e8\u5206\u5e9f\u6c14\u5f15\u56de\u8fdb\u6c14\u6b67\u7ba1\u3002\u8fd9\u53ef\u4ee5\u964d\u4f4e\u5cf0\u503c\u71c3\u70e7\u6e29\u5ea6\uff0c\u4ece\u800c\u51cf\u5c11\u6c2e\u6c27\u5316\u7269\uff08NOx\uff09\u6c61\u67d3\u7269\u7684\u5f62\u6210\u3002EGR\u9600\u6839\u636e\u53d1\u52a8\u673a\u6761\u4ef6\u63a7\u5236\u5e9f\u6c14\u7684\u6d41\u91cf\u3002<\/p>\n<h3 id=\"can-a-stuck-open-egr-valve-cause-a-misfire-\">\u5361\u5728\u6253\u5f00\u4f4d\u7f6e\u7684EGR\u9600\u4f1a\u5bfc\u81f4\u5931\u706b\u5417\uff1f<\/h3>\n<p>\u662f\u7684\uff0c\u5361\u5728\u6253\u5f00\u4f4d\u7f6e\u7684EGR\u9600\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5931\u706b\u3002\u8fc7\u91cf\u7684\u5e9f\u6c14\u518d\u5faa\u73af\u53ef\u80fd\u4f1a\u7a00\u91ca\u7a7a\u6c14\/\u71c3\u6cb9\u6df7\u5408\u7269\uff0c\u5e72\u6270\u6b63\u5e38\u71c3\u70e7\uff0c\u5c24\u5176\u662f\u5728\u6020\u901f\u65f6\u3002<\/p>\n<h3 id=\"what-does-the-egr-valve-position-sensor-do-\">EGR\u9600\u4f4d\u7f6e\u4f20\u611f\u5668\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>EGR\u9600\u4f4d\u7f6e\u4f20\u611f\u5668\u662f\u5b89\u88c5\u5728EGR\u9600\u4e0a\u7684\u7535\u4f4d\u8ba1\uff0c\u5411ECM\u63d0\u4f9b\u9600\u9500\u4f4d\u7f6e\u7684\u7535\u538b\u4fe1\u53f7\u3002ECM\u4f7f\u7528\u6b64\u53cd\u9988\u6765\u68c0\u6d4bEGR\u7cfb\u7edf\u6545\u969c\u3002<\/p>\n<h3 id=\"how-much-does-it-cost-to-fix-a-p1404-code-\">\u4fee\u590dP1404\u6545\u969c\u7801\u7684\u8d39\u7528\u662f\u591a\u5c11\uff1f<\/h3>\n<p>\u4fee\u590dP1404\u6545\u969c\u7801\u7684\u8d39\u7528\u56e0\u6839\u672c\u539f\u56e0\u4e0d\u540c\u800c\u6709\u6240\u53d8\u5316\uff1a<\/p>\n<ul>\n<li>EGR\u9600\uff1a120 &#8211; 500\u7f8e\u5143<\/li>\n<li>EGR\u4f4d\u7f6e\u4f20\u611f\u5668\uff1a80 &#8211; 200\u7f8e\u5143<\/li>\n<li>\u4eba\u5de5\uff081\u5c0f\u65f6\uff09\uff1a80 &#8211; 150\u7f8e\u5143<br \/>\n\u5178\u578b\u7684\u603b\u7ef4\u4fee\u8d39\u7528\u8303\u56f4\u4e3a200 &#8211; 700\u7f8e\u5143\u3002<\/li>\n<\/ul>\n<h3 id=\"can-low-engine-coolant-cause-a-p1404-code-\">\u51b7\u5374\u6db2\u4e0d\u8db3\u4f1a\u5bfc\u81f4P1404\u6545\u969c\u7801\u5417\uff1f<\/h3>\n<p>\u51b7\u5374\u6db2\u4e0d\u8db3\u4e0d\u4f1a\u76f4\u63a5\u5bfc\u81f4P1404\u6545\u969c\u7801\uff0c\u56e0\u4e3a\u8be5\u6545\u969c\u7801\u4e0eEGR\u9600\u5361\u5728\u6253\u5f00\u4f4d\u7f6e\u6709\u5173\u3002\u7136\u800c\uff0c\u51b7\u5374\u6db2\u4e0d\u8db3\u53ef\u80fd\u4f1a\u5bfc\u81f4\u53d1\u52a8\u673a\u6e29\u5ea6\u9ad8\u4e8e\u6b63\u5e38\u503c\uff0c\u968f\u7740\u65f6\u95f4\u63a8\u79fb\uff0c\u53ef\u80fd\u4f1a\u589e\u52a0EGR\u9600\u4e0a\u78b3\u79ef\u7d2f\u7684\u98ce\u9669\u3002<\/p>\n<h3 id=\"can-a-vacuum-leak-cause-a-p1404-code-\">\u771f\u7a7a\u6cc4\u6f0f\u4f1a\u5bfc\u81f4P1404\u6545\u969c\u7801\u5417\uff1f<\/h3>\n<p>\u771f\u7a7a\u6cc4\u6f0f\u4e0d\u4f1a\u76f4\u63a5\u5bfc\u81f4P1404\u6545\u969c\u7801\u3002\u7136\u800c\uff0c\u5927\u7684\u771f\u7a7a\u6cc4\u6f0f\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7a7a\u6c14\/\u71c3\u6cb9\u6df7\u5408\u6bd4\u8fc7\u7a00\uff0c\u6020\u901f\u4e0d\u7a33\uff0c\u7c7b\u4f3c\u4e8eEGR\u9600\u5361\u5728\u6253\u5f00\u4f4d\u7f6e\u7684\u75c7\u72b6\u3002\u9700\u8981\u8fdb\u884c\u9002\u5f53\u7684\u8bca\u65ad\u4ee5\u786e\u5b9a\u5b9e\u9645\u539f\u56e0\u3002<\/p>\n<h3 id=\"what-are-some-other-common-egr-system-fault-codes-\">\u5176\u4ed6\u5e38\u89c1\u7684EGR\u7cfb\u7edf\u6545\u969c\u7801\u6709\u54ea\u4e9b\uff1f<\/h3>\n<p>\u5176\u4ed6\u5e38\u89c1\u7684EGR\u7cfb\u7edf\u6545\u969c\u7801\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p0400-exhaust-gas-recirculation-flow-malfunction\/\" title=\"P0400 - \u6392\u6c14\u518d\u5faa\u73af\u6d41\u91cf\u6545\u969c\">P0400 &#8211; \u6392\u6c14\u518d\u5faa\u73af\u6d41\u91cf\u6545\u969c<\/a><\/li>\n<li><a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p0401-exhaust-gas-recirculation-flow-insufficient-detected-a-technical-description\/\" title=\"P0401 - \u6392\u6c14\u518d\u5faa\u73af\u6d41\u91cf\u4e0d\u8db3\">P0401 &#8211; \u6392\u6c14\u518d\u5faa\u73af\u6d41\u91cf\u4e0d\u8db3<\/a><\/li>\n<li>P0402 &#8211; \u6392\u6c14\u518d\u5faa\u73af\u6d41\u91cf\u8fc7\u591a<\/li>\n<li>P0403 &#8211; \u6392\u6c14\u518d\u5faa\u73af\u7535\u8def\u6545\u969c<\/li>\n<li>P0404 &#8211; \u6392\u6c14\u518d\u5faa\u73af\u7535\u8def\u8303\u56f4\/\u6027\u80fd<\/li>\n<li>P0405 &#8211; \u6392\u6c14\u518d\u5faa\u73af\u4f20\u611f\u5668A\u7535\u8def\u4f4e\u7535\u538b<\/li>\n<li>P0406 &#8211; \u6392\u6c14\u518d\u5faa\u73af\u4f20\u611f\u5668A\u7535\u8def\u9ad8\u7535\u538b<\/li>\n<\/ul>\n<h3 id=\"how-often-do-egr-valves-need-to-be-replaced-\">EGR\u9600\u9700\u8981\u591a\u4e45\u66f4\u6362\u4e00\u6b21\uff1f<\/h3>\n<p>\u6ca1\u6709\u7279\u5b9a\u7684\u884c\u9a76\u91cc\u7a0b\u95f4\u9694\u9700\u8981\u66f4\u6362EGR\u9600\u3002EGR\u9600\u901a\u5e38\u53ef\u4ee5\u4f7f\u7528\u8f66\u8f86\u7684\u6574\u4e2a\u751f\u547d\u5468\u671f\uff0c\u4f46\u5b83\u4eec\u662f\u5e38\u89c1\u7684\u6545\u969c\u90e8\u4ef6\u3002\u77ed\u9014\u9a7e\u9a76\u3001\u52a3\u8d28\u71c3\u6cb9\u548c\u7ef4\u62a4\u4e0d\u9891\u7e41\u7b49\u56e0\u7d20\u53ef\u80fd\u4f1a\u5bfc\u81f4\u9600\u95e8\u56e0\u78b3\u79ef\u7d2f\u800c\u8fc7\u65e9\u6545\u969c\u3002<\/p>\n<h3 id=\"can-you-clean-an-egr-valve-\">\u53ef\u4ee5\u6e05\u6d01EGR\u9600\u5417\uff1f<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u78b3\u79ef\u7d2f\u4e0d\u592a\u4e25\u91cd\uff0c\u53ef\u4ee5\u6e05\u6d01EGR\u9600\u3002\u7136\u800c\uff0c\u6e05\u6d01\u9600\u95e8\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u95ee\u9898\u4f1a\u5f97\u5230\u89e3\u51b3\uff0c\u7279\u522b\u662f\u5982\u679c\u9600\u9500\u6216\u9600\u5ea7\u5df2\u7ecf\u635f\u574f\u7684\u8bdd\u3002\u66f4\u6362\u9600\u95e8\u901a\u5e38\u662f\u6700\u53ef\u9760\u7684\u4fee\u590d\u65b9\u6cd5\u3002<\/p>\n<h3 id=\"what-should-i-do-if-the-p1404-code-keeps-coming-back-\">\u5982\u679cP1404\u6545\u969c\u7801\u4e0d\u65ad\u8fd4\u56de\uff0c\u6211\u8be5\u600e\u4e48\u529e\uff1f<\/h3>\n<p>\u5982\u679c\u5728\u66f4\u6362EGR\u9600\u540eP1404\u6545\u969c\u7801\u4ecd\u7136\u5b58\u5728\uff0c\u53ef\u80fd\u5b58\u5728\u6f5c\u5728\u7684\u7ebf\u8def\u95ee\u9898\u3001\u6545\u969c\u7684EGR\u4f4d\u7f6e\u4f20\u611f\u5668\u6216EGR\u901a\u9053\u4e2d\u7684\u78b3\u79ef\u7d2f\u963b\u6b62\u4e86\u9600\u95e8\u5b8c\u5168\u5173\u95ed\u3002\u9700\u8981\u8fdb\u4e00\u6b65\u7684\u8bca\u65ad\u4ee5\u786e\u5b9a\u6839\u672c\u539f\u56e0\uff0c\u5e76\u9632\u6b62\u95ee\u9898\u53cd\u590d\u53d1\u751f\u3002<\/p>\n<h3 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