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Engine Control System (SFI) - Diagnosis
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DTC P0031: Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1), DTC P0032: Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
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Component Operating Range
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Component Operating Range
COMPONENT OPERATING RANGE
A/F sensor heater current
1.8 to 3.4 A (at 20°C [68°F])