Where to find the O2 Sensor Learning Value reset in the OBD Scanner
O2 Sensor Learning Value reset is a process to clear the oxygen sensor’s adaptive memory, relearning optimal fuel injection timing in a vehicle’s engine management system, after replacing or triggering an “Check Engine” light.<>
What is it? A process that resets the adaptive memory of an oxygen sensor and relearns the best fuel injection timing in a vehicle’s engine management system.<>
When to use it? Resetting after replacing the O2 sensor, catalytic converter, or fuel injector; also when the “Check Engine” light comes on due to an O2 sensor related code.<>
Why is it necessary? The O2 sensor changes its learning values as it adapts over time to various operating conditions of the engine for which it stores data for correct injection timing. After replacement of this sensor or change in the engine’s operating conditions, these old learning values may lead to poor performance of the engine, decreased fuel economy, and elevated emissions. Resetting the value will enable an engine to learn what is best for it regarding fuel injection timing and help maintain good performance while reducing emissions.<>
Importance: Failure to reset can lead to poor engine performance; less efficient fuel consumption and resultantly a possibility of other parts in the motor being damaged as well.<>
Instruction to Access the O2 Sensor Learning Value reset in the OBD Scanner
TheO2 Sensor Learning Value reset can be accessed by following this instruction.<>
- Open your OBD scanner.
- Select Local Diagnose if you are using Launch X431.
- Select Car Brand Select Model (auto-detect is better to detect the vehicle VIN).
- Select and check the following: ECMECT (Engine and ECT), ECM (Engine Control Module)
- Select Special Function Then click O2 Sensor Learning Value reset then follow the screen instruction.
The sample car model with this feature is the Toyota Corolla 2015.<>