Latest automobiles are progressively built with new technologies, apart from the comfort of use it can provide, technology also has the advantage of saving fuel or reducing the pollution emitted by our automobiles. This is exactly the subject matter of our article of the day, we are going to look at the problems of the lambda sensor on Scion tC , this sensor also named oxygen sensor plays an important function. To find out, first, we are going to find out what a lambda probe is used for, then, what are the lambda sensor problems on Scion tC and how to fix them.

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What is a lambda purpose on Scion tC?

So we begin our content page with the benefit of a lambda sensor on Scion tC , we will first see what is the task of this probe and then how it works.

Role of a lambda sensor on Scion tC

First designed by Volvo in the 1970s, it began to appear on our cars in the 1990s with the first EURO 1 emission requirements. As well called oxygen sensor on Scion tC , its goal is to regulate the amount of oxygen in the exhaust gases, this will enable the engine to adapt the air/fuel mixture to lower the pollution emitted by the motor vehicle and lower the car’s fuel consumption.

Lambda sensor operation on Scion tC

Before explaining you the different problems of lambda probe on Scion tC , we will look a little more in outline at its working to allow you to figure out precisely how it works and thus to consider more serenely the correction of a problem associated with it.
As we explained to you, a lambda probe has the job of controlling the amount of oxygen present in the exhaust gases . One could naively believe that this data is measured upstream of the combustion but it is on the contrary measured at the engine outlet . With the EURO 1 standard there was just one lambda sensor needed before the catalyst, but with the arrival of more drastic requirements there are now 2 lambda sensors, one before and one after the catalyst . The benefit is to have more precise data by compiling the two probes. These data are sent to the ECU which will modify the quantity of air and gasoline injected into the engine to optimize the combustion .

Lambda sensor issue on Scion tC

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Finally, we are now going to attack the section you are absolutely most keen on this content page, how to handle it if you have a lambda sensor issue on Scion tC . In a first step we will find out how to locate a lambda sensor HS and in a second step how to replace it.

How to know if a lambda sensor on Scion tC is HS

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It is important to know that a lambda sensor has in general a lifetime of 150 000 km , this info can fluctuate according to the year of your Scion tC, your driving, and the good working of your engine. A poorly maintained engine that emits unburned gases may permanently alter your lambda sensor. One of the clues that can warn you of a faulty lambda sensor on Scion tC may be the engine light comes on, if you want to turn off the engine light of your Scion tC, do not hesitate to consult our dedicated content page to see the process to follow. The only effective method to be certain that you have a lambda sensor issue on your Scion tC and to complete your car to the diagnostic case, for that do not hesitate to seek advice from our tutorial which explains you Scion tChow to read the fault code of a Scion tC. Please be aware that if you have problems with one of your lambda sensors, the just solution to solve them will be to replace the faulty sensor.

How to replace a lambda sensor on Scion tC?

And at last, we are going to concentrate on the correction of lambda sensor problems on Scion tC , by describing how to replace a lambda sensor.

The replacement of a lambda sensor is quite simple to perform and you will be able to do it yourself with a minimal of tools and mechanical expertise. A lambda sensor is worth between 25 and 50€ , it is better to replace 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 necessary to put your Scion tC 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 Scion tC.

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