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Home >> Chevrolet >> 2000 >> Lumina V6-3.1L VIN J >> 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 >> Hot Open Loop
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Hot Open Loop

Scan Tool Displays Active or Inactive. When in Hot Open Loop the Hot Light comes ON and the Air/Fuel mixture becomes rich to cool the internal engine temperature.
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