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Home › Chevrolet › 2001 › Impala LS › Repair and Diagnosis › Engine Performance › System › Engine Control System Self-Diagnostics - 3.8L › Inspection/Maintenance Procedures › Inspection/Maintenance Exhaust Gas RECIRCULATION System Set Procedure › Enable Criteria

Enable Criteria

Barometric pressure (BARO) is more than 70 kPa.
Engine Coolant Temperature (ECT) is more than 167°F (75°C).
System voltage is 10-18 volts.