Other electronics modules, which are smaller than the master control module, fulfill various roles in your car's engine.
The voltage-regulator module is sealed in the generator and controls the charging of the battery.
The electronic spark-control module discern damaging engine knock from other engine noise and sends a signal to the master control module to make adjustments to the engine timing.
Linked to the oxygen sensor and a heated- wire airflow-measuring device, an air-meter module provides signals to the master control module to adjust the air-fuel mixture.
A manifold air-pressure module calculates the mass of air entering the engine, and a direct- ignition module controls spark and timing.
All of these modules work together with the oxygen sensor to keep your car running smoothly, help reduce air pollution, and optimize gas mileage.