1. Use of turbo-charging does not require, or warrant, a change in air-fuel ratio . 2. If so, that would be a higher air-fuel ratio and I would disagree with that. 3. Honda also tinkered with the engine's software, to regulate the air-fuel ratio for cleaner emissions. 4. Each mode is characterized by the air-fuel ratio . 5. Less oxygen in the air unbalances the air / fuel ratio and contributes to power loss. 6. At rich air-fuel ratio , the exhaust gas temperature either increases or decreases depending on the fuel. 7. By monitoring EGT, the driver or pilot can get an idea of the vehicle's air-fuel ratio . 8. This phenomenon makes the oxidizer to fuel ratio ( O / F ) shift during the burn. 9. The EEC-II controlled air-fuel ratio via the Ford proprietary model 7200 Variable Venturi ( VV ) Carburetor. 10. Selections in this information display included G-force, acceleration times, air-fuel ratio , cylinder head temperature, and oil temperature.