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Oxygen Sensor
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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.