2 Easy Adjustments to an Oxygen Sensor

oxygen sensor attatched to the inside of a car engine

An oxygen sensor is a device on modern vehicles that measures air/fuel proportion in an engine. It tells if the mixture is too lean or too rich. Using the information gathered, the sensor determines whether more fuel needs to be added to the mixture in order to create a correct proportion of air and fuel.

As an example, a gas vehicle engine usually operates at an air/fuel ratio of 14.7:1. The vehicle’s computer maintains this proportion in order to provide the vehicle with the correct amount of fuel and oxygen. However, when the sensor senses that the oxygen has a larger volume than the fuel, it adds more fuel to the mixture because it detects that the mixture is too lean. If it detects that there is more fuel than oxygen, it cuts back on the fuel to provide a correct mix.

Manual Adjustment

The performance of an engine relies on many factors. One such factor is the correct mixture of oxygen and fuel. When the oxygen sensors fail, an option would be to replace them with new ones in order to rev up the engine’s performance. However, a manual oxygen sensor adjustment may work just fine. Before purchasing a new set of oxygen sensors, manually adjust the sensor to check if it corrects the error.

To do this, unplug the oxygen sensors. The location of the sensor will differ from one car to the other. Usually, they are mounted on the car’s exhaust. Remove the sensor from the exhaust using a socket wrench. One of the reasons that the sensor is not working properly is probably because it is loose. Clean the sensor and remove any debris present. Before placing the sensor back to its location, make sure to put some sealant on the sensor’s threads. Make sure not to seal the sensor’s ends. Place the sensor back tightly and firmly in place. If the sensor works properly again, you will not need to buy new one yet.

Install EFIE

An oxygen sensor tells the engine’s computer that the air/fuel ratio is correct by sending a signal on a wire using a certain voltage. If the signal reads .45 volts, then the mixture is correct. When the signal is higher, the mixture has too much fuel. If the voltage is lower, there is too much oxygen. In order to adjust the oxygen sensor’s reading, voltage can be added or subtracted to the signal in order to compensate for the error.

To easily adjust the oxygen sensor’s reading, all that is needed is an Electronic Fuel Injection Enhancer (EFIE). This device allows a user to control the voltage on the oxygen sensor’s signal. The computer on the engine becomes unaware of the actual additional oxygen in the exhaust, thus allowing an electrolyzer or fuel-saving device to achieve its maximum fuel saving potential.

An EFIE adjusts an oxygen sensor’s output in order to enhance the fuel-saving capacity of a fuel-saving device. Oxygen sensors do not actually read the correct fuel and air ratio in a car’s exhaust most of the time. In order to correct this problem, installing an EFIE is the best solution.