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<h2>What does a Nitrogen Oxide sensor do?</h2>A car nitrogen oxide (NOx) sensor is a component that keeps an eye on the levels of nitrogen oxide gases in a vehicle's exhaust system. It measures how much NOx is present in the exhaust gases and sends this information to the engine control unit. This helps the engine control unit make necessary adjustments to things like the air-fuel mixture and ignition timing to ensure the engine is running efficiently and emitting fewer harmful emissions. In a nutshell, the NOx sensor plays a crucial role in ensuring the vehicle meets emission standards and contributes to a cleaner environment.<h2>Are NOx sensors providing accurate readings in all weather and driving conditions?</h2>NOx sensors may have limitations in their functionality and accuracy under certain weather and driving conditions. Factors such as extreme temperatures, high humidity, and certain exhaust gas compositions can potentially impact the performance and accuracy of NOx sensors. For example, at very low or high temperatures, the sensitivity and response time of NOx sensors can be affected, potentially leading to less accurate readings. Furthermore, the presence of other contaminants or substances in the exhaust stream, such as sulfur compounds or particulate matter, can potentially interfere with the sensor's operation, affecting its accuracy.<h2>How to tell if my Nitrogen Oxide NOx sensor is bad?</h2>If you suspect that your NOx (nitrogen oxide) sensor may be faulty or not functioning properly, there are a few signs that can indicate a potential issue:<ul><li>Check engine light: Illumination of the check engine light on the dashboard may indicate a faulty NOx sensor or another emission-related issue.</li><li>Reduced engine performance: A malfunctioning NOx sensor can lead to decreased engine performance, including power loss, sluggish acceleration, or poor fuel efficiency.</li><li>Failed emissions test: If your vehicle consistently fails emissions tests or exhibits a significant increase in NOx emissions, it could be due to a faulty NOx sensor.</li><li>Poor fuel economy: A malfunctioning NOx sensor may result in poor fuel economy without any other apparent issues.</li></ul>

Nitrogen Oxide Sensor

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Air Cleaner

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Air Filter Box

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

Air Flow Sensor

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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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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.

2018 Audi Q7 Nitrogen Oxide Sensor

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