The density of an object is the mass of the object compared to its volume. The equation for density is: Density = mass/volume or D = m/v. Each substance has its own characteristic density because of the size, mass, and arrangement of its atoms or molecules.
Rating Newest Oldest. Best Answer: The knock sensor is basically a microphone. Its there to listen for spark knock which is also called detonation, pinging, and pre ignition. This is the condition inside the engine where the fuel begins to burn before its supposed to. It sounds like someone rattling a can of marbles. It can easily destroy the internals of an engine.
The MAF sensor is an electronic sensor that sends a signal to the engine computer, which then uses the measurements to help calculate fuel delivery and spark timing. In most applications, the MAF sensor utilizes an electrically charged wire to determine the amount of airflow entering the air intake.This wire produces an electrical voltage, based on airflow, and sends it to the engine computer, which then uses the information to adjust spark timing, fuel delivery and spark advance.n most applications, the MAF sensor utilizes an electrically charged wire to determine the amount of airflow entering the air intake. This wire produces an electrical voltage, based on airflow, and sends it to the engine computer, which then uses the information to adjust spark timing, fuel delivery and spark advance.