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Home › Buick › 2020 › Encore Base › Repair and Diagnosis › Engine Performance › System › Engine Controls And Fuel - 1.4L (LUV) - Repair Instructions › Repair Instructions › Fuel Composition Reset › With Scan Tool

With Scan Tool

  1. Ignition - On / Vehicle - In Service Mode
  2. Select: Module Diagnostics
  3. Select: Engine Control Module
  4. Select: Configuration/Reset Functions
  5. Select: Reset Functions
  6. Select: Fuel Composition Reset
  7. Follow the instructions on the scan tool. - The procedure will complete within 10 s
  8. All OK.
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