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Home >> Volvo >> 2004 >> V40 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes - 1 Of 3 >> ECM-18: Front Heated Oxygen Sensor (Ho2S), Preheating. Signal Missing. Permanent Fault (B4204T2 CVVT; 2000) >> Signal missing. Permanent fault >> Defective heated oxygen sensor (HO2S)

Defective heated oxygen sensor (HO2S)

Try a new heated oxygen sensor (HO2S) according to Replace the front heated oxygen sensor (HO2S) .