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DTC P0137, P0157 HO2S2 EC-287 C D E F G H I J K L M A EC 6. Check the voltage when revving up to 4,000 rpm under no load 7. Keep vehicle at idling for 10 minutes, then check voltage. Or 8. If NG, replace heated oxygen sensor 2. CAUTION: ● Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 ● Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread Removal and Installation NBS0021E HEATED OXYGEN SENSOR 2 Refer to PBIB2024E |