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EC-166 < COMPONENT DIAGNOSIS > [VQ40DE] P0137, P0157 HO2S2 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 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. PBIB1607E 2009 Pathfinder |