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<h2>What is an exhaust gas temperature sensor?</h2>Exhaust gas temperature (EGT) sensors are like the engine's thermometer. They're placed in your car's exhaust system, near the engine, to measure how hot the exhaust gases are getting. Why does this matter?<ol><li>Better performance: EGT sensors send information to your car's brain (the engine control unit) to fine-tune things like how much fuel is injected and when, so your engine runs at its best.</li><li>Emission control: They also help control emissions. By knowing the exhaust temperature, your car can adjust things to reduce harmful pollutants coming out of the tailpipe.</li><li>Safety: EGT sensors act as a kind of safety guard. If the exhaust gets too hot, it can signal your car's computer to take action and prevent overheating or damage.</li></ol>EGT sensors help the car run smoothly, save fuel, and keep the environment cleaner, all by keeping an eye on how hot things are in the engine's exhaust system.<h2>Exhaust gas temperature sensor failure symptoms</h2>Think of your exhaust gas temperature sensor as a kind of "temperature detective" inside your car's engine. Its job is to keep an eye on how hot things are getting in your exhaust system. When this sensor isn't working as it should, you might notice a few things:<ul><li>Check engine light: First, your car might throw a little warning sign on the dashboard, often known as the check engine light. It's like a signal that something's not quite right.</li><li>Lackluster performance: Your car might not feel as peppy as usual. It could be slower to accelerate, and overall, it just won't have that zip you're used to.</li><li>Thirsty for fuel: When the EGT sensor goes haywire, your car might start sipping fuel like it's a bottomless cup. This means you'll notice fewer miles per gallon.</li><li>Environmental impact: If the EGT sensor isn't doing its job, your car might release more pollution into the air, which isn't great for the environment.</li><li>Rough idle: Sometimes, when the EGT sensor acts up, your car might not idle smoothly. It might shake or vibrate when you're sitting still.</li><li>Too hot to handle: On the flip side, if the sensor gets things wrong, your car's exhaust might get too hot, potentially causing problems or damage.</li><li>No more safety net: The EGT sensor also helps keep your engine safe from overheating. If it's not working, you lose that extra layer of protection.</li></ul>&nbsp;If you notice any of these signs, it's a good idea to have a local mechanic take a look under the hood to sort things out.

Exhaust Gas Temperature Sensor

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Air Cleaner

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Air Filter Box

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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.

Nissan D21 Exhaust Gas Temperature Sensor