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Q. 볼보 2008년 S60 2.5T 차량인데 주행중 뒤에서 당기는듯해서 인젝터 전부 교환했고, 신호대기중 시동이꺼져서 연료압력센서 교체하고 그래도 또 시동꺼져 연료펌프모듈 교체했는데 같은 현상입니다. 뭐가 문제일까요?
볼보 2008년 S60 2.5T 차량, 시동꺼짐과 주행중 출력이상 증상 고장코드 ECM-212D & ECM-21ED 스캔된다. 가장 유력한 점검포인트는 '공기' 쪽으로 MAF 센서부터 하나씩 차분히 점검하는것이 좋을듯 하다.
Volvo DTC ECM-212D
Long-Term Fuel Trim, Signal Too Low (Bank 1)
Description:
The engine control module (ECM) receives information from the heated oxygen sensor (HO2S) (bank 1) about the fuel / air mixture when idling and at both the upper and lower part-load range. If the fuel / air mixture deviates from λ=1, the short-term fuel trim will compensate for this by adjusting the injection time so that λ=1 is achieved. When the short-term fuel trim makes an adjustment, the integrator median must be adjusted by the long-term trim. The diagnostic trouble code (DTC) is stored when the long-term trim must be adjusted to almost maximum in the lower part load area.
Cause:
- Intake air leakage
- High fuel pressure
- Leaking injectors
- Damaged mass air flow (MAF) sensor
- Contaminated engine oil
- Oil level too high
- Damaged heated oxygen sensor (HO2S) (bank 1).
Volvo DTC ECM-21ED
Long-Term Fuel Trim, Signal Too Low (Bank 1)
Description:
The engine control module (ECM) stores information about fuel trim in the various adaptation ranges. The diagnostic trouble code (DTC) is stored if the engine control module (ECM) detects that one of the codes for fuel trim (bank 1) is stored in two consecutive operating cycles. The diagnostic trouble code is a collective code for diagnostic trouble codes having to do with the fuel adaptation. The diagnostic trouble code is always stored together with one of the following diagnostic trouble codes: ECM-210C ECM-210D ECM-212C ECM-212D ECM-216C ECM-216D If any or some of these diagnostic trouble codes above are stored, then troubleshoot these acc. to each troubleshooting.
Cause:
Locate the fault cause in the diagnostic trouble codes (DTCs) covering “Long-term fuel trim”.
Credit: https://www.dtcdecode.com/Volvo/ECM-212D
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