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。
厂商技术资料
6以下为英文原文
TOYOTA
原文报码 P0172
TSB: REVISION NOTICE January 23, 2020 Rev1: G1439 The Parts Information, Calibration Information, and Repair Procedure sections have been updated. SUPERSESSION NOTICE The information contained in this bulletin…
TOYOTA
原文报码 P0172
TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0058-13. Service Bulletin No. T-SB-0058-13 is obsolete and any printed versions should be discarded. Some 2009 ?…
TOYOTA
原文报码 P0172
TSB: Some 2012 ? 2015 model year Sequoia and Tundra vehicles with the 3UR-FBE engine may exhibit a MIL ?ON? condition with Diagnostic Trouble Codes (DTCs) P0171/P0174 (System too Lean Bank 1/Bank 2), P0172/P0175 (System…
TOYOTA
原文报码 P0172
TSB: Some 2012 ? 2015 model year Sequoia and Tundra vehicles with the 3UR-FBE engine may exhibit a MIL ?ON? condition with Diagnostic Trouble Codes (DTCs) P0171/P0174 (System too Lean Bank 1/ Bank 2), P0172/P0175…
TOYOTA
原文报码 P0172
Some 2012 ? 2013 model year Sequoia and Tundra vehicles with the 3UR-FBE engine may exhibit a MIL ?ON? condition with Diagnostic Trouble Codes (DTCs) P0171/P0174 (System too Lean Bank 1/ Bank 2), P0172/P0175 (System too…
TOYOTA
原文报码 P0172
Some 2012-2013 model year Sequoia and Tundra vehicles with the 3UR-FBE engine may exhibit a MIL "ON" condition with DTC P0171/P0174 (lean), P0172/P0175 (rich), P1604 Startability, and/or P1605 Rough Idle after…
核对适用车辆
11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。
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。