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Oxygen Sensor

OXYGEN SENSOR VOLTAGE (1)

Condition Volts
M30 (Titania)
Lean 0
Rich 1.5
G20 & Q45 (Zirconia) (2)
Lean 0-0.3
Rich 0.6-1.0
(1) Measure voltage between oxygen sensor terminal and ground.
(2) Measure heater resistance between terminals "A" and "C" at sensor. Resistance should be between 3-1000 ohms.
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