HHR L4-2.4L (2010)
the engine at operating temperature.
4. Drive the vehicle until the Fuel Composition Learn parameter displays Inactive.
5. Use the scan tool to reset the fuel trim values.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and
Associated Procedures/Verification Tests and Procedures) after completing the diagnostic procedure.
Fuel System Cleaning (See: Service and Repair)
