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Home › Pontiac › 2002 › Sunfire GT, 2.2 F › Repair and Diagnosis › Engine Performance › System › Engine Controls Self-Diagnostics - 2.2L › Inspection/Maintenance Procedures › Inspection/Maintenance Heated Oxygen Sensor/Oxygen Sensor System Set Procedure › Conditions For Running Test

Conditions For Running Test

ECT is more than 167°F (75°C).
Engine is in closed loop.
Engine has been running more than 4 minutes.
Battery voltage is 10-16 volts.