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P0138, P0158 HO2S2 EC-645 < COMPONENT DIAGNOSIS > [VK56DE] C D E F G H I J K L M A EC N P O The voltage should be below 0.18V at least once during this procedure. 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 in) onto a hard surface such as a concrete floor; use a new one. • Before installing new oxygen sensor, clean exhaust system threads (using Oxygen Sensor Thread Cleaner tool J-43897-18 or J-43897-12) and approved anti-seize lubricant. |