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Home › Saturn › 2003 › L200 Automatic › Repair and Diagnosis › Engine Performance › System › Engine Controls - Self-Diagnostics › Drive Cycles › Inspection/Maintenance Heated Oxygen Sensor/Oxygen Sensor System Set Procedure › Conditions For Running Test

Conditions For Running Test

The ECT sensor parameter 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.