{"id":287705,"date":"2024-10-23T09:01:49","date_gmt":"2024-10-23T09:01:49","guid":{"rendered":"https:\/\/www.ziptuning.com\/zh\/?p=287705"},"modified":"2024-11-04T11:52:24","modified_gmt":"2024-11-04T11:52:24","slug":"p20f9-reductant-pump-control-circuit-range-performance","status":"publish","type":"post","link":"https:\/\/www.ziptuning.com\/zh\/blog\/p20f9-reductant-pump-control-circuit-range-performance\/","title":{"rendered":"P20F9 &#8211; \u8fd8\u539f\u5242\u6cf5\u63a7\u5236\u7535\u8def\u8303\u56f4\/\u6027\u80fd"},"content":{"rendered":"<h2 id=\"understanding-the-p20f9-code\">\u7406\u89e3P20F9\u4ee3\u7801<\/h2>\n<p>P20F9\u8bca\u65ad\u6545\u969c\u4ee3\u7801 (DTC) \u8868\u793a\u53d1\u52a8\u673a\u7b2c\u4e8c\u6392\u8fdb\u6c14\u6b67\u7ba1\u63a7\u5236\u7535\u8def\u6027\u80fd\u95ee\u9898\u3002\u6b64\u4ee3\u7801\u7279\u6307\u8fdb\u6c14\u6b67\u7ba1\u63a7\u5236\u7cfb\u7edf\uff0c\u8be5\u7cfb\u7edf\u5728\u4f18\u5316\u53d1\u52a8\u673a\u6027\u80fd\u7684\u5404\u79cd\u8fd0\u884c\u6761\u4ef6\u4e0b\u8d77\u7740\u5173\u952e\u4f5c\u7528\u3002<\/p>\n<div class=\"workshop-experience-text\">\n<p>\u6839\u636e\u6211\u4eec\u7684\u7ecf\u9a8c\uff0cP20F9\u4ee3\u7801\uff08\u8fdb\u6c14\u6b67\u7ba1\u63a7\u5236\u7535\u8def\u6027\u80fd &#8211; \u7b2c\u4e8c\u6392\uff09\u5728\u67d0\u4e9b\u6b27\u6d32\u54c1\u724c\u4e2d\u8f83\u4e3a\u666e\u904d\uff0c\u5c24\u5176\u662f\u5b9d\u9a6c\u548c\u5965\u8fea\u8f66\u578b\u3002\u6211\u4eec\u7ecf\u5e38\u5728\u914d\u5907N52\u53d1\u52a8\u673a\u7684\u5b9d\u9a6c3\u7cfb\u548c5\u7cfb\u8f66\u8f86\u4ee5\u53ca\u914d\u59072.0T\u53d1\u52a8\u673a\u7684\u5965\u8feaA4\u548cA6\u8f66\u578b\u4e2d\u9047\u5230\u6b64\u95ee\u9898\u3002\u867d\u7136\u6b64\u95ee\u9898\u5076\u5c14\u51fa\u73b0\u5728\u4e00\u4e9b\u7f8e\u7cfb\u548c\u4e9a\u6d32\u8f66\u578b\u4e2d\uff0c\u4f46\u8fdc\u4e0d\u5982\u6b27\u6d32\u8f66\u578b\u5e38\u89c1\u3002\u6b27\u6d32\u8f66\u578b\u5f80\u5f80\u62e5\u6709\u66f4\u590d\u6742\u7684\u8fdb\u6c14\u6b67\u7ba1\u8bbe\u8ba1\uff0c\u8fd9\u4f1a\u589e\u52a0\u6b64\u7c7b\u95ee\u9898\u7684\u53d1\u751f\u7387\u3002\u6211\u4eec\u53d1\u73b0\uff0c\u89e3\u51b3\u6b64\u4ee3\u7801\u901a\u5e38\u9700\u8981\u5f7b\u5e95\u6e05\u6d01\u8fdb\u6c14\u6b67\u7ba1\u548c\u63a7\u5236\u7cfb\u7edf\uff0c\u6216\u8005\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u9700\u8981\u66f4\u6362\u6267\u884c\u5668\u6216\u4f4d\u7f6e\u4f20\u611f\u5668\u3002<\/p>\n<\/div>\n<h2 id=\"urgency-and-drivability\">\u7d27\u6025\u6027\u548c\u9a7e\u9a76\u6027<\/h2>\n<p>\u5c3d\u7ba1P20F9\u4ee3\u7801\u5e76\u4e0d\u7acb\u5373\u5371\u6025\uff0c\u4f46\u4e0d\u5e94\u5ffd\u89c6\u3002\u76ee\u524d\u8be5\u95ee\u9898\u88ab\u8ba4\u4e3a\u975e\u4e25\u91cd\uff0c\u4f46\u5efa\u8bae\u5b9a\u671f\u76d1\u63a7\u4ee5\u9632\u6b62\u95ee\u9898\u6076\u5316\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\u53ef\u4ee5\u7ee7\u7eed\u9a7e\u9a76\uff0c\u4f46\u53ef\u80fd\u4f1a\u5bfc\u81f4\u53d1\u52a8\u673a\u6027\u80fd\u4e0b\u964d\u548c\u71c3\u6cb9\u6548\u7387\u964d\u4f4e\u3002\u5efa\u8bae\u5c3d\u65e9\u8bca\u65ad\u5e76\u89e3\u51b3\u95ee\u9898\uff0c\u4ee5\u9632\u6b62\u66f4\u4e25\u91cd\u7684\u95ee\u9898\u53d1\u5c55\u3002<\/p>\n<h2 id=\"code-specifics\">\u4ee3\u7801\u7ec6\u8282<\/h2>\n<p>P20F9\u662f\u5236\u9020\u5546\u4e13\u7528\u4ee3\u7801\uff0c\u8fd9\u610f\u5473\u7740\u5176\u5177\u4f53\u89e3\u91ca\u5728\u4e0d\u540c\u54c1\u724c\u95f4\u53ef\u80fd\u7565\u6709\u4e0d\u540c\u3002\u8be5\u4ee3\u7801\u901a\u5e38\u8868\u793a\u53d1\u52a8\u673a\u63a7\u5236\u6a21\u5757 (ECM) \u68c0\u6d4b\u5230\u53d1\u52a8\u673a\u7b2c\u4e8c\u6392\u8fdb\u6c14\u6b67\u7ba1\u63a7\u5236\u7535\u8def\u7684\u6027\u80fd\u95ee\u9898\u3002<\/p>\n<h2 id=\"components-involved\">\u6d89\u53ca\u7684\u7ec4\u4ef6<\/h2>\n<p>\u8fdb\u6c14\u6b67\u7ba1\u63a7\u5236\u7cfb\u7edf\u7531\u4ee5\u4e0b\u5173\u952e\u7ec4\u4ef6\u7ec4\u6210\uff1a<\/p>\n<ol>\n<li>\u63a7\u5236\u9600\u6216\u6321\u677f<\/li>\n<li>\u6267\u884c\u5668\uff08\u901a\u5e38\u4e3a\u7535\u63a7\uff09<\/li>\n<li>\u4f4d\u7f6e\u4f20\u611f\u5668<\/li>\n<li>\u63a7\u5236\u7535\u8def\u548c\u7ebf\u8def<\/li>\n<li>\u53d1\u52a8\u673a\u63a7\u5236\u6a21\u5757 (ECM)<\/li>\n<\/ol>\n<p>\u8be5\u7cfb\u7edf\u901a\u8fc7\u8c03\u6574\u8fdb\u6c14\u6b67\u7ba1\u7684\u957f\u5ea6\u6216\u622a\u9762\u79ef\u6765\u4f18\u5316\u8fdb\u5165\u53d1\u52a8\u673a\u7684\u6c14\u6d41\u3002\u5728\u4f4e\u901f\u72b6\u6001\uff08\u901a\u5e38\u4f4e\u4e8e3000 RPM\uff09\uff0c\u6321\u677f\u90e8\u5206\u5173\u95ed\u4ee5\u589e\u52a0\u6c14\u6d41\u901f\u5ea6\uff0c\u63d0\u5347\u626d\u77e9\u548c\u71c3\u6cb9\u6548\u7387\u3002\u5728\u9ad8\u901f\u72b6\u6001\u4e0b\uff0c\u6321\u677f\u5b8c\u5168\u6253\u5f00\u4ee5\u6700\u5927\u5316\u6c14\u6d41\u3002<\/p>\n<h2 id=\"common-causes\">\u5e38\u89c1\u539f\u56e0<\/h2>\n<p>\u89e6\u53d1P20F9\u4ee3\u7801\u7684\u56e0\u7d20\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\u6267\u884c\u5668\u6545\u969c<\/li>\n<li>\u63a7\u5236\u9600\/\u6321\u677f\u635f\u574f\u6216\u5361\u4f4f<\/li>\n<li>\u63a7\u5236\u7535\u8def\u4e2d\u7684\u7ebf\u8def\u95ee\u9898<\/li>\n<li>\u4f4d\u7f6e\u4f20\u611f\u5668\u6545\u969c<\/li>\n<li>ECM\u8f6f\u4ef6\u6545\u969c<\/li>\n<li>\u8fdb\u6c14\u6b67\u7ba1\u4e2d\u7684\u79ef\u78b3<\/li>\n<\/ol>\n<h2 id=\"diagnostic-procedure\">\u8bca\u65ad\u6b65\u9aa4<\/h2>\n<p>\u8bca\u65adP20F9\u4ee3\u7801\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u4f7f\u7528OBD-II\u626b\u63cf\u4eea\u786e\u8ba4\u4ee3\u7801\u5e76\u68c0\u67e5\u662f\u5426\u6709\u5176\u4ed6\u76f8\u5173\u4ee3\u7801\u3002<\/li>\n<li>\u76ee\u89c6\u68c0\u67e5\u8fdb\u6c14\u6b67\u7ba1\u548c\u63a7\u5236\u7ec4\u4ef6\u662f\u5426\u6709\u660e\u663e\u7684\u635f\u574f\u6216\u79ef\u78b3\u3002<\/li>\n<li>\u68c0\u67e5\u7ebf\u8def\u548c\u8fde\u63a5\u5668\u662f\u5426\u6709\u635f\u574f\u6216\u8150\u8680\u7684\u8ff9\u8c61\u3002<\/li>\n<li>\u4f7f\u7528\u4e07\u7528\u8868\u6d4b\u8bd5\u63a7\u5236\u6267\u884c\u5668\u548c\u4f4d\u7f6e\u4f20\u611f\u5668\u7684\u7535\u963b\u548c\u7535\u538b\u662f\u5426\u6b63\u5e38\u3002<\/li>\n<li>\u4f7f\u7528\u9ad8\u7ea7\u8bca\u65ad\u5de5\u5177\u8fdb\u884c\u53cc\u5411\u63a7\u5236\u6d4b\u8bd5\uff0c\u6307\u4ee4\u63a7\u5236\u7cfb\u7edf\u5e76\u89c2\u5bdf\u5176\u64cd\u4f5c\u60c5\u51b5\u3002<\/li>\n<li>\u624b\u52a8\u6fc0\u6d3b\u63a7\u5236\u7cfb\u7edf\u65f6\uff0c\u76d1\u63a7\u4f4d\u7f6e\u4f20\u611f\u5668\u7684\u5b9e\u65f6\u6570\u636e\u3002<\/li>\n<\/ol>\n<h2 id=\"solutions-and-repairs\">\u89e3\u51b3\u65b9\u6848\u4e0e\u7ef4\u4fee<\/h2>\n<p>\u6839\u636e\u95ee\u9898\u7684\u6839\u672c\u539f\u56e0\uff0c\u53ef\u80fd\u7684\u7ef4\u4fee\u65b9\u6848\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\u6e05\u9664\u8fdb\u6c14\u6b67\u7ba1\u548c\u63a7\u5236\u9600\u4e0a\u7684\u79ef\u78b3<\/li>\n<li>\u66f4\u6362\u6545\u969c\u7684\u6267\u884c\u5668<\/li>\n<li>\u4fee\u590d\u6216\u66f4\u6362\u635f\u574f\u7684\u7ebf\u8def<\/li>\n<li>\u66f4\u6362\u6545\u969c\u7684\u4f20\u611f\u5668<\/li>\n<li>\u5982\u6709\u53ef\u7528\uff0c\u66f4\u65b0ECM\u8f6f\u4ef6<\/li>\n<li>\u5728\u4e25\u91cd\u60c5\u51b5\u4e0b\uff0c\u66f4\u6362\u6574\u4e2a\u8fdb\u6c14\u6b67\u7ba1\u603b\u6210<\/li>\n<\/ol>\n<h2 id=\"prevention\">\u9884\u9632\u63aa\u65bd<\/h2>\n<p>\u4e3a\u4e86\u9632\u6b62P20F9\u53ca\u76f8\u5173\u95ee\u9898\uff1a<\/p>\n<ol>\n<li>\u4f7f\u7528\u9ad8\u8d28\u91cf\u71c3\u6cb9\u5e76\u5b9a\u671f\u66f4\u6362\u53d1\u52a8\u673a\u673a\u6cb9\uff0c\u4ee5\u51cf\u5c11\u79ef\u78b3\u3002<\/li>\n<li>\u6309\u7167\u5236\u9020\u5546\u7684\u7ef4\u62a4\u8ba1\u5212\u8fdb\u884c\u5b9a\u671f\u4fdd\u517b\u3002<\/li>\n<li>\u53ca\u65f6\u89e3\u51b3\u4efb\u4f55\u6027\u80fd\u95ee\u9898\uff0c\u4ee5\u9632\u6b62\u8fdb\u6c14\u7cfb\u7edf\u8fc7\u8f7d\u3002<\/li>\n<\/ol>\n<h2 id=\"cost-analysis\">\u8d39\u7528\u5206\u6790<\/h2>\n<p>\u7ef4\u4fee\u8d39\u7528\u56e0\u6839\u672c\u539f\u56e0\u548c\u8f66\u8f86\u578b\u53f7\u7684\u4e0d\u540c\u800c\u5dee\u5f02\u8f83\u5927\u3002\u9884\u8ba1\u8303\u56f4\uff1a<\/p>\n<ul>\n<li>\u8bca\u65ad\u8d39\uff1a$100-$200 (\u20ac85-\u20ac170)<\/li>\n<li>\u6e05\u6d01\u8fdb\u6c14\u7cfb\u7edf\uff1a$150-$300 (\u20ac127-\u20ac255)<\/li>\n<li>\u66f4\u6362\u63a7\u5236\u6267\u884c\u5668\uff1a$200-$500 (\u20ac170-\u20ac425)<\/li>\n<li>\u66f4\u6362\u6574\u4e2a\u8fdb\u6c14\u6b67\u7ba1\uff1a$500-$1500 (\u20ac425-\u20ac1275)<\/li>\n<\/ul>\n<h2 id=\"diy-repair-guide\">DIY\u7ef4\u4fee\u6307\u5357<\/h2>\n<p>\u5bf9\u4e8e\u6709\u7ecf\u9a8c\u7684\u6280\u5de5\uff1a<\/p>\n<ol>\n<li>\u65ad\u5f00\u7535\u6c60\u3002<\/li>\n<li>\u627e\u5230\u8fdb\u6c14\u6b67\u7ba1\u63a7\u5236\u7cfb\u7edf\uff0c\u901a\u5e38\u4f4d\u4e8e\u8fdb\u6c14\u6b67\u7ba1\u7684\u4e00\u4fa7\u3002<\/li>\n<li>\u68c0\u67e5\u662f\u5426\u6709\u53ef\u89c1\u7684\u635f\u574f\u6216\u79ef\u78b3\u3002<\/li>\n<li>\u5bf9\u6267\u884c\u5668\u548c\u4f20\u611f\u5668\u8fdb\u884c\u7535\u6c14\u6d4b\u8bd5\u3002<\/li>\n<li>\u5982\u9700\u6e05\u6d01\uff0c\u62c6\u5378\u8fdb\u6c14\u6b67\u7ba1\uff0c\u4ed4\u7ec6\u6e05\u6d01\u6240\u6709\u7ec4\u4ef6\u3002<\/li>\n<li>\u66f4\u6362\u96f6\u4ef6\u65f6\uff0c\u786e\u4fdd\u9075\u5faa\u6b63\u786e\u7684\u626d\u77e9\u89c4\u683c\uff08\u5b89\u88c5\u87ba\u6813\u901a\u5e38\u4e3a8-12 Nm\u62166-9 ft-lbs\uff09\u3002<\/li>\n<li>\u4fee\u7406\u540e\uff0c\u6e05\u9664DTC\u5e76\u8fdb\u884c\u8bd5\u9a7e\u4ee5\u786e\u4fdd\u95ee\u9898\u5df2\u89e3\u51b3\u3002<\/li>\n<\/ol>\n<h2 id=\"related-issues\">\u76f8\u5173\u95ee\u9898<\/h2>\n<p>P20F9\u4ee3\u7801\u53ef\u80fd\u4e0e\u5176\u4ed6\u8fdb\u6c14\u548c\u71c3\u6cb9\u7cfb\u7edf\u4ee3\u7801\u4e00\u8d77\u51fa\u73b0\uff0c\u4f8b\u5982P2009\uff08\u8fdb\u6c14\u6b67\u7ba1\u63a7\u5236\u7535\u8def\u4f4e\u538b &#8211; \u7b2c\u4e00\u6392\uff09\u6216<a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p200a-intake-manifold-runner-performance-bank-1\/\" title=\"P200A\uff08\u8fdb\u6c14\u6b67\u7ba1\u6027\u80fd - \u7b2c\u4e00\u6392\uff09\">P200A\uff08\u8fdb\u6c14\u6b67\u7ba1\u6027\u80fd &#8211; \u7b2c\u4e00\u6392\uff09<\/a>\u3002<\/p>\n<p>\u901a\u8fc7\u53ca\u65f6\u5f7b\u5e95\u89e3\u51b3<a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p20f9-reductant-pump-control-circuit-range-performance\/\" title=\"P20F9\u4ee3\u7801\uff0c\u5de5\u7a0b\u5e08\u548c\u6280\u5e08\u53ef\u4ee5\u786e\u4fdd\u53d1\u52a8\u673a\u7684\u6700\u4f73\u6027\u80fd\uff0c\u5e76\u9632\u6b62\u66f4\u4e25\u91cd\u7684\u95ee\u9898\u53d1\u751f\">P20F9\u4ee3\u7801\uff0c\u5de5\u7a0b\u5e08\u548c\u6280\u5e08\u53ef\u4ee5\u786e\u4fdd\u53d1\u52a8\u673a\u7684\u6700\u4f73\u6027\u80fd\uff0c<\/a>\u5e76\u9632\u6b62\u66f4\u4e25\u91cd\u7684\u95ee\u9898\u53d1\u751f\u3002<\/p>\n<h2 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