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Home › Cadillac › 2005 › XLR › Repair and Diagnosis › Engine Performance › System › Engine Controls (Troubleshooting & Diagnosis) › Inspection/Maintenance (I/M) Catalyst System Set Procedure › Conditions for Running

Conditions for Running

The barometric pressure (BARO) is more than 74 kPa.
The engine coolant temperature (ECT) is more than 63°C (145°F).
The engine is in closed loop fuel control.