A Rich Fuel Mixture, that has less air than required, for the complete combustion of the fuel. These mixtures are less efficient. Because, they lack the air required, for the complete combustion of the fuel.

(O2) Oxygen Sensor – Function – Failure Symptoms – With Testing
The, (O2) Oxygen Sensor, measures the difference, between the amount of oxygen in the exhaust gas. And, the amount of oxygen in air. So, with that information and other sources, the (ECU) can decide, whether […]