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Archive for June, 2014

Understanding How Fuel Injector Systems Work

Wednesday, June 25th, 2014

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.

Common Causes of an Illuminated Check Engine Light

Thursday, June 5th, 2014

Although your car cannot speak, it has other ways of communicating the need for repairs. An illuminated check engine light may be caused by many different issues. Your automotive repair specialist can help you diagnose the cause of your check engine light and perform the repairs you need to get you back on the road.

Gas Cap

A gas cap that has not been replaced properly often prompts the “check engine” light. When your gas cap is loose or broken, gasoline vapors may leak from the tank. This leakage affects the entire fuel system inside your car. Because this issue can be easily resolved, it’s the first thing you should check when you see the check engine light. If the cap is loose, simply tighten it; if the gas cap appears damaged, you should have it replaced.

Oxygen Sensor

Your engine’s oxygen sensor is responsible for monitoring the amount of fuel that is burned inside the engine. Over time, these sensors can be affected by dust, dirt, and oil ash, limiting their functionality. A faulty or broken oxygen sensor won’t send the right information to your engine, thus impacting your gas mileage. When your car determines that one or more of the oxygen sensors in the engine are faulty, it will often illuminate the check engine light.

Catalytic Converter

The catalytic converter reduces the harmful emissions from your car by mixing the byproducts of automotive combustion with a catalyst that renders them less harmful or inert. A failing catalytic converter often causes poor gas mileage and limited pickup when you press on the gas pedal. The check engine light could indicate your car has a damaged or failing catalytic converter; you’ll need to have your automotive repair specialist fix or replace your converter to address the issue.

Are you experiencing a check engine light, poor gas mileage, or other problem with your vehicle? Schedule a visit to Automotive Recalibration Center in Tucson today by calling (520) 433-4147. You can find out more about keeping your car or truck maintained with us on the web.