Q. 촉매와 관련된 고장코드는 어떤것들이 있나요

Create Date: Nov. 23, 2021, 11:02 a.m. (1)

사진은 혼다 어코드 V6 7.5세대 Bank2 촉매사진이다. 흔히 말하는 산소센서 1번 (사실 Air Fuel Ratio 센서이다) 을 탈거하면 내시경을 통하여 촉매내부를 살펴볼 수 있다.

촉매와 관련된 고장코드는 아래와 같다. 각 차량 및 엔진별 고장코드를 살펴보도록 한다. 아래의 코드는 OBD2가 있는 모든 차량에서는 의무적으로 제공하는 기능이다.

촉매고장이전에 LTFT라는 장기연료보정 값이 있는데, 이 LTFT이 -20%정도 되거나 -10%를 벗어나면 사전에 예방정비를 하는것이 권장된다. 값비싼 A/F Ratio센서 및 촉매를 보호하는것 뿐아니라, 연비 측면에서도 꼭 필요한 작업이다.

[P0420] Catalyst System Efficiency Below Threshold Bank 1
[P0421] Warm Up Catalyst Efficiency Below Threshold Bank 1
[P0422] Main Catalyst Efficiency Below Threshold Bank 1
[P0423] Heated Catalyst Efficiency Below Threshold Bank 1
[P0424] Heated Catalyst Temperature Below Threshold Bank 1
[P0425] Catalyst Temperature Sensor Bank 1
[P0426] Catalyst Temperature Sensor Range/Performance Bank 1
[P0427] Catalyst Temperature Sensor Low Input Bank 1
[P0428] Catalyst Temperature Sensor High Input Bank 1
[P0429] Catalyst Heater Control Circuit Bank 1
[P0430] Catalyst System Efficiency Below Threshold Bank 2
[P0431] Warm Up Catalyst Efficiency Below Threshold Bank 2
[P0432] Main Catalyst Efficiency Below Threshold Bank 2
[P0433] Heated Catalyst Efficiency Below Threshold Bank 2
[P0434] Heated Catalyst Temperature Below Threshold Bank 2
[P0435] Catalyst Temperature Sensor Bank 2
[P0436] Catalyst Temperature Sensor Range/Performance Bank 2
[P0437] Catalyst Temperature Sensor Low Input Bank 2
[P0438] Catalyst Temperature Sensor High Input Bank 2
[P0439] Catalyst Heater Control Circuit Bank 2

Issue environments & Tags

#Cold start, #Operating temperature, #Cruishing #General, #Electrical, #Maintenance, #Diagnosis

Notes & References

1. https://aa1car.com/library/converter.htm

Tutorial

Blinking check engine light Learn the vehicle maintenance basics first. Vehicle diagnostics, OBD2, DTC basics - 101 STFT (단기연료보정값) 과 LTFT(장기연료보정값) 기본 이해하기 산소센서 전체적인 배우기 MAP 센서 테스팅하기 P0107 P0108 MAP센서 측정

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SunJoo Moon , Edit Date: Jan. 18, 2022, 9:54 p.m.