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动力总成

P0451

故障码含义与厂商资料

OBD-II / DTC

参考含义

这个码是什么意思?

以下表述对应所列厂商与通报。使用前请核对完整报码、报码模块、年款和发动机。

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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Ford P0451

EVAPORATIVE EMISSIONS CONTROL SYSTEM PRESSURE SENSOR RANGE/PERFORMANCE

NHTSA 612389 ↗

Honda P0451

FUEL TANK PRESSURE SENSOR CIRCUIT RANGE / PERFORMANCE PROBLEM

NHTSA 610289 ↗

厂商技术资料

57

以下为英文原文

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SA-059-25 ↗

MAZDA

Some vehicles may experience the CHECK ENGINE light ON with one of the following DTCs or a combination of these DTCs. P0451 • P2422 • P2451 • P0441 • This may be caused by a concern with the fuel pressure sensor or shutter valve operation.

TSB 25-2431 ↗

FORD

*This article supersedes TSB 24-2199 to add the rear half shaft seals to the TSB parts list. Some of the vehicles listed in the model statement above may exhibit one of the following conditions: *Fuel tank not filling up beyond half-full *Hard to start *Stalls upon restart after refueling *A malfunction indicator lamp (MIL) with…

VOS-25-38 ↗

VOLKSWAGEN

This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: Hotfix - 0001 – EVAP Fault Codes Missing Test Plan - P045100: Evaporative Emission System Pressure Sensor/Switch – No test plan.

TSB 25-2140 ↗

FORD

Some of the vehicles listed in the Model statement above may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0451 stored in the powertrain control module (PCM). This may be due to the software level of the PCM.

核对适用车辆

261

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
AudiA6 ↗2018
AudiA6 ↗2017
AudiA6 ↗2016
AudiA7 ↗2018
AudiA7 ↗2017
AudiA7 ↗2016
BuickENVISION ↗2024
BuickENVISION ↗2023

故障码含义与厂商资料

以下为英文原文 · 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。

Evaporative Emission Control System Pressure Sensor Range/Performance

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。