Toyota Rav4 Parts And Toyota Rav4 Accessories
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Addressing an Oxygen Sensor Problem in a Toyota RAV4
Sport utility vehicles and other big automobiles such as the Toyota RAV4 often get the reputation of being gas guzzlers. They are said to require more fuel to run, and this is one of the reasons they are a bit more costly to own and drive. However, while the RAV4 might fall into this category, it comes equipped with a wide range of gas-saving devices that keep the SUV running well while minimizing the cost of vehicle ownership.
The wonder that is the oxygen sensor
Under the hood of your Toyota RAV4, so many complex processes take place to provide your ride with your desired performance. A lot of these processes are controlled by the automotive computer, together with the help of various sensors and other devices located at strategic positions in the vehicle. The oxygen sensor is one of these devices.
The oxygen sensor is a crucial sensor mounted in the exhaust system. What it does is it measures the amount of oxygen present in the exhaust gases emitted by the car engine during combustion. This measurement is sent to the engine computer, which the latter uses to adjust the amount of air and fuel delivered to the combustion chambers for power generation. If there is too much oxygen in the exhaust gases, the sensor\'s reading would enable the car computer to reduce the amount of air sent to the engine (and vice versa).
When the oxygen sensor goes bad
The location of the oxygen sensor somewhere along the exhaust pipes exposes the device to the extremely hot gases exiting the vehicle. The high temperature often takes a toll on the life and performance of the sensor, causing it to malfunction and fail after a while. When this happens, the sensor would stop sending the correct reading and data to the engine computer, and this can mess up the entire combustion process because the process would be a hit and miss.
Oxygen sensor failure in your Toyota RAV4 can cause several problems, most of which affecting your vehicle performance. Toyota RAV4 owners report cracking in the device\'s sensing element, resulting in the sensor always sending a lean mixture alert to the car computer, a mistaken alert that tells the computer to send more fuel to the engine, which then leads to an extremely rich mixture. This causes heavy emissions that can lead to a failure in emissions test as well as the failure of the catalytic converter because it\'s overworked. Most drivers would smell a rotten egg odor, accompanied by a spike in fuel consumption.
What to do to address an oxygen sensor problem
When you notice your Check Engine Light coming on and you have determined that the oxygen sensor is damaged, the only thing you can do is replace it. The process is as simple as unscrewing the old and damaged sensor, unplugging it, screwing in the new one, and then plugging it in. You will need a socket for this job, and you can also prepare for the job overnight by soaking the sensor\'s thread with oil. Another thing you have to do is to reset your check engine light.