Inspection/Maintenance System Check (CNG): Description

For vehicles designed to run on fuels other than gasoline, some additional procedures may be required to set I/M System Status indicators to YES. Vehicles designed to run on both gasoline and Compressed Natural Gas (CNG) will disable certain diagnostic tests when vehicle is operating on CNG. These vehicles will require operation using gasoline for remaining tests to run. The system set procedures for gasoline vehicles can be used once vehicle is operating on gasoline.