The Bosch Mass Air Flow (MAF) sensor measures the volume and density of air entering the engine, so the engine control unit can calculate the right fuel delivery for efficient combustion. Also known as an air flow meter or MAF sensor, it plays a key role in fuel economy, smooth idle, throttle response, and emissions control. Key Features: Precise air mass measurement to help the engine control unit maintain the correct air-fuel ratio Designed to meet OE specifications for fit, form, and function Helps restore smooth idle, steady acceleration, and fuel efficiency Built with durable materials for dependable performance in under-hood heat, vibration, and changing conditions Made by Bosch, a leading original equipment supplier of automotive sensors and fuel and air management components Signs of a Failing MAF Sensor: Rough or unstable idle Hesitation or poor acceleration Reduced fuel economy Check engine light Hard starting or stalling Replacing a worn or contaminated MAF sensor with a Bosch unit helps restore proper engine management and performance. Choose the correct part number for your application from the available options.