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Pontiac
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2002
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Sunfire GT, 2.4 T, Standard
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls Self-Diagnostics - 2.4L
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Inspection/Maintenance Procedures
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Inspection/Maintenance Heated Oxygen Sensor/Oxygen Sensor (Ho2S/O2S) System Set Procedure
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Conditions For Running
Conditions For Running
Engine coolant temperature is more than 167°F (75°C).
Engine operating in closed-loop fuel control.
The engine has been running for more than 1 minute.
Battery voltage is 10-16 volts.