P0420 · 觸媒系統效率低於門檻 · 汽缸列 1

參考含義

這個碼是什麼意思？

控制器在監測條件下判斷觸媒效率不足。P0420 對應第 1 汽缸列，P0430 對應第 2 汽缸列。應檢查排氣漏氣、失火與混合氣相關碼，依車型評估感知器訊號及觸媒測試。故障碼本身不證明必須換觸媒或含氧感知器。

來源與解讀範圍 [1]

故障碼描述偵測到的異常，不直接指定必須更換的零件。

原廠原文中的含義

原文含義可能隨車型與後綴變化。此處依來源顯示，不代表通用診斷結論。

AudiP042000

Catalyst System,Bank1 Efficiency Below

NHTSA 10253336 · NHTSA 10253337

AudiP042000

Catalyst System,Bank1 Efficiency Below Front window inoperative Air suspension warning - DTC

NHTSA 10245646 · NHTSA 10245649

AudiP042000

Catalyst System, Bank1 Efficiency Below

NHTSA 10251506

AudiP042000

Catalyst System, Bank1 Efficiency Below" Coolant leak from expansion tank Corrosion inside door module Fuel pressure low

NHTSA 10243976

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原廠技術資料

以下為英文原文

AVin4Pin202404042024-04-04

AUDI

原文故障碼 P042000

Noise from front door trim panel while driving Air suspension warning - DTC P089200 charge handle doesn't release vehicle will not charge Corrosion on wheelhouse cover plate P008700 - low fuel pressure P042000: Catalyst…

查看通報 ↗

AVin4Pin202404032024-04-04

AUDI

原文故障碼 P042000

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AVIN4PIN202403052024-03-05

AUDI

原文故障碼 P042000

Noise from front door trim panel while driving Low coolant warning in cluster, coolant level is correct Front window inoperative Air suspension warning - DTC P089200 charge handle doesn't release vehicle will not charge…

查看通報 ↗

AVIN4PIN202311202023-11-20

AUDI

原文故障碼 P042000

Noise from front door trim panel while driving Noise from front door trim panel while driving Low coolant warning in cluster, coolant level is correct Check engine lamp is on, DTC (s) P010600, P023600, P023700, P023800…

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A0123972072121_12023-11-20

AUDI

原文故障碼 P042000

This bulletin provides information for when the MIL/EPC light is illuminated, DTC P042000 or P043000, Catalyst system, bank 1 or 2 efficiency below thresh hold.

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AVIN4PIN202311102023-11-10

AUDI

原文故障碼 P042000

查看通報 ↗

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