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动力总成

P0172

混合气过浓 · 气缸列 1

OBD-II / DTC

参考含义

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。

限定车辆范围

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。

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。

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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。

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厂商技术资料

207

以下为英文原文

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DODGE

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 Codes (DTCs): ● **P032F-00 - Combustion Engine Producing Insufficient Torque. ● P2D28-00 - Cold Start Propulsion …

PIP6113 ↗

BUICK, CHEVROLET, GMC

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 body markings to confirm it is an original manufacture part. If it is not an original manufacture part, they sho…

A25-044 ↗

HONDA

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 the PCM to misread the A/F sensor heater resistance. Other DTCs may also include: P0700, P0300, P219C, P219D, P…

MERCEDES-BENZ

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- P030000, P030100, P030200, P030300, P030400, P030084, P030004 Mixture adaptation- P217800 P218762, P017100, P017200,…

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。

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品牌车型年款
AcuraACURA ↗年份不详
AcuraCL ↗2003
AcuraCL ↗2002
AcuraCL ↗2001
AcuraINTEGRA ↗2001
AcuraINTEGRA ↗2000
AcuraINTEGRA ↗1999
AcuraINTEGRA ↗1998

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。

  1. 2024–2025 MY OBD System Operation Summary for Gasoline Engines ↗

    Ford Motor Company · PDF 页码 21, 22 · 2024-04-16

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。