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Understanding How Fuel Injector Systems Work

Prior to 1990, automotive engines typically used carburetors to mix air with fuel to achieve efficient combustion within the engine. Today, newer automobile engines utilize fuel injection systems to deliver fuel to the engine when it is running. If you are experiencing engine troubles related to the fuel injection system, Automotive Recalibration Center is here […]

Prior to 1990, automotive engines typically used carburetors to mix air with fuel to achieve efficient combustion within the engine. Today, newer automobile engines utilize fuel injection systems to deliver fuel to the engine when it is running. If you are experiencing engine troubles related to the fuel injection system, Automotive Recalibration Center is here to help with fast, effective repairs.

The Throttle Valve

When you step on the gas pedal in your car, the pedal allows the throttle valve to open. This process brings air into your engine in preparation for combustion. The more heavily you step on the gas pedal, the more air is allowed into your engine. As the throttle valve opens, an electronic engine control unit causes a subsequent increase in fuel in preparation for combustion.

The Injectors

Fuel injectors allow gasoline into the engine while mixing it with the proper amount of air. Each injector is a valve capable of opening and closing many times each second. The valve itself is controlled by an electromagnet, which moves a plunger to release gasoline into the engine. As gasoline enters the engine, it is atomized by a nozzle at the end of the valve, creating a fine mist. When your engine needs more fuel, the fuel injectors will stay open longer; when less fuel is needed, they will close more quickly.

The Sensors

In addition to the moving components of the fuel injection system, your engine also contains numerous sensors. These sensors continually monitor the conditions inside the engine to determine the amount of fuel needed to provide the acceleration you want. Some of the sensors in your engine that make up the fuel injection system include the engine speed sensor, the coolant temperature sensor, and the oxygen sensor.

The expert team at Automotive Recalibration Center is pleased to offer automotive repair and fleet maintenance in Tucson. We are committed to delivering the highest quality of customer service during every repair job. If you’d like to learn more or schedule automotive repairs with us, call (520) 433-4147 or visit us on the web.

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