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The fuel injection system gives you the kind of efficiency and performance older technologies are not capable of, but it comes at a cost. This cost is complexity, and there are more things waiting to go wrong with your fuel injection system than with older engines, so you need to keep on top of your maintenance. An important part of the system is a number of different sensors used to determine how much fuel and oxygen is to be mixed into the cylinder.

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The range of sensors feeding information to your vehicle's computer is important, because it is this information that determines how much fuel and air are mixed together to be burnt in the cylinder. When the sensors are working well, your vehicle runs efficiently and gives you the power you expect. However, when one or more of the sensors fail, your vehicle's computer gets the wrong information, and efficiency and performance become less and less.

To check your sensors, you need to know what they look like. Unfortunately, they can be difficult to find because they are almost always small, and will usually be deeply embedded into the component they are measuring. However, there are some things you can do to lift your chances of finding them, and one of those is consulting the vehicle's hand book. Each sensor will usually have an electrical cable running from it to the vehicle's computer, and most sensors are small. Of course, finding these sensors can be difficult but very worthwhiles because you will eventually need to replace them.

Because they work every time you start the engine, they will wear out after a period of time. They will usually last longer than most components in the vehicle, but they can fail without warning because they are close to the hot engine. A number of them, including the coolant temperature sensor, will also have liquids and other substances running through or around them, and any contaminants in those substances can cause an early fail. When one or more sensors do fail, you will quickly become aware of it because the symptoms are serious.

The symptoms of failing sensors include things like your engine running roughly at idle or under power, a fast idle when the engine is warm because the coolant temperature sensor has failed, or even an inability to start because the oxygen sensor is providing the wrong information so the wrong mixture of fuel and air is being used. Each symptom can begin slowly, so you barely notice it, but they can quickly become worse over a short period of time, and you can find your vehicle impossible to drive. Once these symptoms appear, it is time to replace the right sensor!

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Fuel Injection Sensors Reviews

Average rating:  4.5  4.7 - 12 reviews
Read All Fuel Sensors, Relays, Switches Reviews
5 of 5
2001 Acura CL / Posted by Pablo (Phoenix, AZ) /

The product was easy to install and came in perfect condition. Price was right too! Thanks!

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