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<h2>What is an air flow sensor?</h2>An air flow sensor, also known as a mass airflow (MAF) sensor, is an essential component of a vehicle's engine management system. It is designed to measure the amount of air that is entering the engine to determine the appropriate amount of fuel to be injected. The sensor typically consists of a sensing element that measures the airflow, a heating element that helps to warm up the incoming air, and a signal output that sends data to the vehicle's computer.&nbsp;The air flow sensor plays a crucial role in the engine's performance and fuel efficiency, as a malfunctioning sensor can cause the engine to receive too much or too little fuel, leading to decreased performance, increased emissions, and poor fuel economy. Therefore, it is important to ensure that the air flow sensor is working properly and to replace it if it is found to be faulty.<h2>What happens when an air flow sensor malfunctions?</h2>When an air flow sensor malfunctions, it can cause a number of problems with your vehicle's performance. The air flow sensor is responsible for measuring the amount of air entering the engine, which is used to determine the correct amount of fuel to be injected. If the sensor is not working properly, it can cause the engine to receive too much or too little fuel, which can lead to a variety of issues such as decreased fuel efficiency, poor engine performance, other engine component damages, etc.<h2>How much does it cost to replace an air flow sensor?</h2>The cost of replacing an air flow sensor can vary depending on the make and model of your vehicle and where you go to have the work done. On average, you can expect to pay anywhere from $100 to $400 for parts and labor.If you have a basic understanding of mechanics, you may be able to replace the air flow sensor yourself, which can save you money on labor costs. However, it's important to note that some vehicles have sensors that are more difficult to access, which may require special tools and expertise to replace.It's also worth noting that simply replacing the air flow sensor may not always fix the underlying issue. If the sensor is malfunctioning due to a larger problem with the engine or emissions system, additional repairs may be needed. It's best to have your vehicle properly diagnosed by a qualified mechanic before replacing any parts to ensure that the correct repairs are made.

Mass Air Flow Sensors/Car MAF Sensors | A-Premium

Air Flow Sensor

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Air Cleaner

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Air Filter Box

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Air Intake Duct

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Air Intake Hose

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Air Intake Manifold Actuator Control Solenoid

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Air Intake Manifold Flap Adjuster

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Air Intake Manifold Runner Control Sensor

Air Intake Resonator

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Electric Vacuum Pump

Engine Air Duct Assembly

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Engine Air Filter

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Intake Manifold

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Intake Manifold Flap Actuator

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Intake Manifold Repair Bracket

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Intake Manifold Runner Control Valve

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Intercooler

Intercooler Hose

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Oxygen Sensor

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Pressure Sensor

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Supercharger Pulley Drive Unit

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Supercharger Snout Rebuild Kit

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Throttle Body

Throttle Cable

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Throttle Position Sensor

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Turbocharger

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Turbocharger Gasket Kit

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Turbocharger Oil Line

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Vacuum Pump

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Air Filters & Intake Systems

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Camshaft Adjuster

Camshaft Adjuster Cover

Camshaft Kit

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Camshaft Timing Gear

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Camshafts

Chain Tensioner Adjuster

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Cylinder Head

Cylinder Head Assembly

Eccentric Shaft Actuator

Engine Timing Belt

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Engine Valve Cover

Engine Valve Cover Gasket

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Harmonic Balancer

Rocker Arm

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Rocker Arm Shaft Lifter Assembly

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Timing Belt Kit

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Timing Chain Gear

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Timing Chain Kit

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Timing Cover

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Timing-Control Valve Solenoid

Valve Cover Gasket

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Valve Lifter Guides

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Valve Lifters Tappet

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Cams, Timing & Valvetrain

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Belt Tensioner

Coolant Level Sensor

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Crank Installer Tool

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Crankcase Breather Hose

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Crankcase Breather Valve

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Crankshaft Position Sensor

Crankshaft Pulley

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Engine Oil Dipstick

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Engine Oil Dipstick Tube

Engine Oil Filter

Engine Oil Pan Gasket

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Flywheel

Harmonic Balancer Crankshaft Hub

Knock Sensor

Oil Baffle

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Oil Cooler

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Oil Cooler Line

Oil Drip Pan

Oil Filler Cap

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Oil Filter

Oil Filter Base

Oil Filter Cover

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Oil Filter Housing

Oil Filter Housing Cover

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Oil Level Sensor

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Oil Pan

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Oil Pump

Oil Pump Drive Gear Shaft

Oil Pump Pickup Tube

Oil Separator

Serpentine Belt

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Cranks, Pistons, Oil & Components

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Camshaft Position Sensor

Camshaft Position Sensor & Magnet Kit

Connector Plug

Distributor Cap

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Electronic Ignition System

Engine Valve Covers & Ignition Coils Kits

Glow Plug

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Glow Plug Relay Module

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Ignition Coil

Ignition Coils & Spark Plugs & Wires Kits

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Ignition Coils & Spark Plugs Kits

Ignition Coils & Wires Kits

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Ignition Distributor

Ignition Lock Cylinder

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Ignition Starter Switch

Ignition Switch Actuator

Kill Switch

Knock Detonation Sensor

Relay

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Spark Plug

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Spark Plug Wire

Electronic Control Modules, Ignition & Distributors

Engine Wiring Harness

Intake Manifold Repair Kit

Pulley

Engine Components & Accessories

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Active Grille Shutter Actuator

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Auxiliary Water Pump

Drive Motor Inverter Cooler

Electric Engine Water Pump

Engine Coolant Air Bleeder Valve

Engine Coolant Pipe

Engine Coolant Shut Off Valve

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Expansion Tank

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Expansion Tank Mounting Plate

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Fan Pulley Bracket

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Fuel Cooler

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Overflow Hose Connector

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Radiator

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Engine Cooling

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The engine comprises many essential elements such as the lower cylinder block, upper cylinder head(s), and the cooling & lubricating systems. With A-Premium aftermarket engine components, you can expect that your engine deliver years of reliable performance. We offer a diverse selection of engine components from air filters and ignition coils (kits) to fuel pumps to cater to your needs.

BMW 740iL Air Flow Sensor