What is the purpose of the 4 Gas Mode?

The purpose of the 4 Gas Mode is to show gas amounts in a tailpipe or air. This mode utilizes specialized sensors to measure the concentrations of four critical exhaust gases: carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), and oxygen (O2). These measurements are essential for assessing vehicle emissions and ensuring compliance with environmental standards.

By analyzing the levels of these gases, inspectors can evaluate the overall performance and efficiency of the engine and identify potential issues related to fuel combustion and emissions. The data gathered in 4 Gas Mode is vital for making informed decisions about the vehicle's emissions system and overall health. It also serves as a critical tool in diagnosing whether a vehicle is functioning within acceptable limits, thus playing a key role in emissions testing and regulation enforcement.