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Home >> Buick >> 1999 >> Regal V6-3.8L SC VIN 1 >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data Definitions - Powertrain Systems >> Fuel Trim Learn
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Fuel Trim Learn

Scan Tool Displays DISABLED or ENABLED. When conditions are appropriate for enabling long term fuel trim corrections, FUEL TRIM LEARN will display ENABLED. This indicates that the long term fuel trim is responding to short term fuel trim. If the Fuel Trim Learn displays DISABLED, long term fuel trim will not respond to changes in short term fuel trim.
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