In order for your engine to function properly, the correct mixture of fuel and air needs to be injected into the combustion chamber. The oxygen sensor is responsible for calculating the precise amount of oxygen needed for the engine. Located in the exhaust system, the fuel injection and engine timing systems are able to work efficiently when your oxygen sensor is - this helps your emissions stay in check. Pay attention to the signs that something might be wrong with your sensor. The check engine light might come on if your sensor is failing, especially if your vehicle has high mileage. Since the fuel delivery and fuel combustion systems will be thrown off, then your gas mileage will likely be reduced as well. Excess fuel in the engine will likely produce a rotten egg smell and black smoke from the exhaust. Your engine running rougher than normal or irregularly when you're idling as well. A bad sensor can affect engine timing and the air to fuel ratio negatively so that your engine misfires. Make sure you get this part inspected if you notice any of these symptoms. Shop our online store to find the OEM replacement for your oxygen sensor to get your Toyota running efficiently again.
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