这个码是什么意思？
P0171/P0172 对应第 1 气缸列，P0174/P0175 对应第 2 气缸列。过稀或过浓是控制器对混合气的判断，不是某个零件损坏的直接测量。比较怠速及负荷工况燃油修正，检查进气排气漏气，并按车型标准测试供油及传感器读数。
来源与解读范围 [1]
故障码描述检测到的异常，不直接指定必须更换的零件。
厂商原文中的含义
原文含义可能随车型和后缀变化。此处按来源展示，不代表通用诊断结论。
P0172fuel system too richP0172Fuel System Too RichP0172Fuel System 1/1 Rich(LATAM Only)P0172-00System Too Rich (Bank 1)厂商技术资料
207以下为英文原文
DODGE
原文报码 P0172-00
Flash: Powertrain Control Module (PCM) Updates PCR9A Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble…
BUICK, CHEVROLET, GMC
原文报码 P0172
This document provides the technician with a diagnostic tip if the vehicle stalls and set diagnostic trouble code P0191 and may also set P0172. The diagnostic tip has the technician inspect the high pressure fuel pump…
HONDA
原文报码 P0172
Service Bulletin - The engine runs rough and makes a rattling noise, accompanied by DTC P0134 or P0135 due to a possible fuel injector leak causing a rich air/fuel (A/F) mixture that fouls the spark plug(s) and causing…
MERCEDES-BENZ
原文报码 P017200
Complaint Check engine light on. Engine in limp-home mode. Rough running. Low fuel rail pressure fault code P008700 stored in MRG2 control unit. Additional faults below may be stored in MRG2 control unit: Misfire-…
MERCEDES-BENZ
原文报码 P017200
Complaint Check engine light on. Engine in limp-home mode. Rough running. Low fuel rail pressure fault code P008700 stored in MRG2 control unit. Additional faults below may be stored in MRG2 control unit: Misfire-…
MERCEDES-BENZ
原文报码 P017200
Complaint Check engine light on. Engine in limp-home mode. Rough running. Low fuel rail pressure fault code P008700 stored in MRG2 control unit. Additional faults below may be stored in MRG2 control unit: Misfire-…
核对适用车辆
577车型关联可作为查阅线索；具体发动机、生产范围和软件条件请核对厂商资料。
| 品牌 | 车型 | 年款 |
|---|---|---|
| Acura | ACURA | 未注明年款 |
| Acura | CL | 2003 |
| Acura | CL | 2002 |
| Acura | CL | 2001 |
| Acura | INTEGRA | 2001 |
| Acura | INTEGRA | 2000 |
| Acura | INTEGRA | 1999 |
| Acura | INTEGRA | 1998 |
| Acura | MDX | 2003 |
| Acura | MDX | 2002 |
| Acura | MDX | 2001 |
| Acura | TL | 2003 |
更换零件之前
记录报码及冻结帧，检查蓄电池状态、相关报码和可见的线束或软管损伤。按照该车诊断流程和测试结果决定维修，避免仅凭故障码换件。
来源与解读范围
以下解释由本站依据所列原厂资料整理。页码从 PDF 文件第一页计数。原文为英文，译文供查阅参考；引用某个版本不代表它就是厂商当前最新指令。
- 2024–2025 MY OBD System Operation Summary for Gasoline Engines ↗
Ford Motor Company · PDF 页码 21, 22 ·
来源核对日期 · 2026-10-27
还能继续驾驶吗？
仅靠故障码无法判断是否适合继续行驶。故障灯闪烁、严重抖动、过热、机油压力报警或制动转向异常都需及时处理。影响车辆控制或发动机安全时，应在安全地点停车并寻求帮助。以车辆手册为准。