P0420 · 催化系统效率低于阈值 · 气缸列 1

参考含义

这个码是什么意思？

控制器在监测条件下判断催化系统效率不足。P0420 对应第 1 气缸列，P0430 对应第 2 气缸列。应排查排气漏气及失火、混合气相关码，并按车型评估传感器信号及催化器测试。报码本身不能证明必须更换催化器或氧传感器。

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。

FordP0420

Catalyst System Efficiency Below Threshold (Bank 1)

NHTSA 11009829

厂商技术资料

以下为英文原文

TSB 26-20672026-02-25

FORD

原文报码 P0420

Some of the vehicles listed in the Model statement above may exhibit an incorrectly illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0420 and/or P0430 stored in the powertrain control…

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TSB 25-22332025-05-30

FORD

原文报码 P0420

This article supersedes TSB 24-2124 to change the labor operation from actual time to fixed time. Some of the vehicles listed in the Model statement above may exhibit an illuminated MIL with diagnostic trouble codes…

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24E042024-10-04

FORD

原文报码 P0420

The affected vehicles have an on-board diagnostics (OBD) system that may falsely set the catalytic converter Diagnostic Trouble Codes (DTC) P0420 – Catalyst System Efficiency Below Threshold (Bank 1) and/or P0430 –…

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TSB 24-21842024-06-07

FORD

原文报码 P0420

This article supersedes TSB 24-2115 to update the Service Procedure. Some 2018-2020 F-150 vehicles equipped with a 2.7L EcoBoost may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes…

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TSB 24-21242024-04-26

FORD

原文报码 P0420

This article supersedes TSB 23-2425 to address revised software and update the Parts List. Some 2022-2023 F-150 hybrid vehicles equipped with a 3.5L PowerBoost engine may exhibit an illuminated MIL with diagnostic…

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TSB 24-21152024-04-24

FORD

原文报码 P0420

This article supersedes TSB 22-2260 to update the vehicle applications. Some 2018-2020 F-150 vehicles equipped with a 2.7L EcoBoost may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble…

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