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Home >> Chevrolet >> 2001 >> Impala V6-3.8L VIN K >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data, Normal Values and Definitions >> Scan Tool Data Definitions - Powertrain Systems >> EGR Position Variance

EGR Position Variance

The scan tool range is 0-100 percent. Indicates the difference between Desired EGR Position and Actual EGR Position currently being monitored by the PCM. If the EGR Position Variance reaches an unacceptable level, DTC P1406 will set.
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