Modern cars are more and more equipped with new technologies, apart from the comfort of use it can bring, technology as well has the advantage of saving fuel or reducing the pollution emitted by our cars. This is precisely the subject of our content of the day, we are going to look at the problems of the lambda sensor on Toyota Scion FR S , this sensor as well called oxygen sensor plays an essential function. To find out, first, we are going to find out what a lambda probe is employed for, then, what are the lambda sensor problems on Toyota Scion FR S and how to solve them.

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What is a lambda task on Toyota Scion FR S?

So we start our content page with the benefit of a lambda sensor on Toyota Scion FR S , we will first discover what is the function of this probe and then how it functions.

Role of a lambda sensor on Toyota Scion FR S

First created by Volvo in the 1970s, it began to appear on our cars in the 1990s with the first EURO 1 emission standards. Also called oxygen sensor on Toyota Scion FR S , its objective is to control the amount of oxygen in the exhaust gases, this will enable the engine to adapt the air/fuel mixture to reduce the pollution emitted by the motor vehicle and reduce the car’s fuel consumption.

Lambda sensor procedure on Toyota Scion FR S

Before describing you the different problems of lambda probe on Toyota Scion FR S , we will look a little more in outline at its operation to allow you to figure out precisely how it functions and thus to consider more serenely the correction of a problem associated with it.
As we told you, a lambda probe has the task of controlling the amount of oxygen present in the exhaust gases . One could naively think that this data is calculated upstream of the combustion but it is on the contrary measured at the engine outlet . With the EURO 1 standard there was only one lambda sensor required before the catalyst, but with the arrival of more drastic standards there are now 2 lambda sensors, one before and one after the catalyst . The benefit is to have more exact data by compiling the two probes. These data are sent to the ECU which will adjust the quantity of air and gasoline injected into the engine to optimize the combustion .

Lambda sensor problem on Toyota Scion FR S

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Finally, we are now going to attack the section you are obviously most interested in this content page, how to handle it if you have a lambda sensor problem on Toyota Scion FR S . In a first step we will find out how to identify a lambda sensor HS and in a second step how to change it.

How to know if a lambda sensor on Toyota Scion FR S is HS

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It is essential to know that a lambda sensor has in general a lifetime of 150 000 km , this info can vary according to the year of your Toyota Scion FR S, your driving, and the good performance of your engine. A poorly maintained engine that produces unburned gases may permanently damaged your lambda sensor. One of the clues that can alert you of a faulty lambda sensor on Toyota Scion FR S may be the engine light turns on, if you want to turn off the engine light of your Toyota Scion FR S, do not hesitate to visit our dedicated content page to discover the procedure to stick to. The only effective way to ensure that you have a lambda sensor problem on your Toyota Scion FR S and to complete your car to the diagnostic case, for that do not hesitate to consult our guide which explains you Toyota Scion FR Show to read the fault code of a Toyota Scion FR S. Please note that if you have problems with one of your lambda sensors, the only remedy to solve them will be to change the faulty sensor.

How to change a lambda sensor on Toyota Scion FR S?

And at last, we are going to concentrate on the correction of lambda sensor problems on Toyota Scion FR S , by explaining how to replace a lambda sensor.

The replacement of a lambda sensor is quite very easy to accomplish and you will have the ability to do it yourself with a lowest of tools and mechanical expertise. A lambda sensor is worth between 25 and 50€ , it is better to change the 2 lambda sensors present upstream and downstream of your catalytic converter because if one of them is faulty the second one risks to drop you fairly quickly. To replace it, it will be required to put your Toyota Scion FR S on candles and at the level of your catalyst unscrew your probes, disconnect them, reconnect them and screw the new ones . Once re-connected, you should not have any more problems with your lambda sensor on Toyota Scion FR S.

If perhaps you have any further questions about the Toyota Scion FR S, do not hesitate to consult our Toyota Scion FR S category.