Mike's Workshop Manuals
: Service manuals for every vehicle
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Buick
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2001
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Century Custom
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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 - 3.1L & 3.4L
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Inspection/Maintenance Procedures
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Inspection/Maintenance Exhaust Gas RECIRCULATION System Set Procedure
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Enable Criteria
Enable Criteria
Barometric Pressure (BARO) is more than 65 kPa.
Engine Coolant Temperature (ECT) is 176-230°F (80-110°C).
Intake Air Temperature (IAT) is less than 149°F (65°C).