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Home >> Mercury >> 1994 >> Villager LS >> Repair and Diagnosis >> Engine Performance >> Sensor Range Charts >> Engine Controls - Sensor Operating Range Charts >> Introduction >> Heated Oxygen Sensor (Ho2S)
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Heated Oxygen Sensor (Ho2S)

HO2S VOLTAGE

Condition (1) Voltage
Rich Increases
Lean Decreases
(1) Measure between oxygen sensor connector and ground. Voltage should toggle above and below 0.45 volt when system is in closed loop.
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