2023年9月26日 · The air-fuel ratio (AFR) is the mass ratio between the amount of air and fuel that are mixed together in the combustion chamber of a vehicle. This ratio needs to correct for the fuel to burn correctly and efficiently.

The way you read an air-fuel ratio (AFR) gauge is by looking at the ratio and then looking at the lambda value, which is your air fuel ratio divided by the stoich. If your AFR is higher than the stoich, your fuel mixture is lean. But if the AFR is lower than …

The AFR+ system uses a wideband O2 sensor to display the full range of AFR values and target performance AFR values along with fuel economy AFR values. A Narrowband O2 Sensor is only calibrated to know whether the current AFR is rich, lean, or stoich.

2016年6月6日 · Many enthusiasts have a wideband oxygen sensor and air/fuel ratio (AFR) gauge installed at the recommendation of their tuner or friends (if not already factory equipped), but don’t fully understand how to interpret the readings or what the target value should be …

2021年6月18日 · In a perfect world, all gasoline engines would run the ideal air-fuel mixture of 14.7 parts air to 1 part fuel. This target mixture, which is referred to as the stoichiometric air-fuel ratio, is a compromise between optimum fuel economy and optimum power output.

Understanding the readings from your air/fuel ratio gauge is critical to fully leveraging the gauge’s benefits. The gauge measures the air/fuel ratio, the proportion of air to fuel in the combustion mix within your engine. A wideband air/fuel ratio gauge will provide a numerical reading that indicates the air/fuel mixture ratio.

2021年9月13日 · Based on air fuel ratio sensor signal, the computer adjusts the air to fuel ratio to keep it at the optimum level, which is about 14.7:1 or 14.7 parts of air to 1 part of fuel. Problems with air fuel ratio sensors are common. Often a sensor gets contaminated or simply fails.

Wideband sensors not only are a lot faster acting in the reading, but can tell you the exact a/f ratio that the motor is currently at. So instead of just telling the ECU that the motor is running rich, it will read a voltage that correlates to an actual value, like 11.2.

2023年3月2日 · Air/Fuel Ratio (AFR) measures how many parts of air are mixed with each part of fuel, and it is essential to have the correct ratio for the engine to function correctly. Stoichiometric Ratio (Stoich) is the ideal AFR at which the mixture burns entirely during combustion.

“Air–fuel ratio (AFR) is the mass ratio of air to fuel present in a combustion process such as in an internal combustion engine or industrial furnace. ... If exactly enough air is provided to completely burn all of the fuel, the ratio is known as the stoichiometric mixture, often abbreviated to stoich.”