Recent vehicles are progressively furnished 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 vehicles. This is precisely the subject matter of our article content of the day, we are going to look at the complications of the lambda sensor on Toyota Highlander , this sensor also named oxygen sensor plays an important role. To find out, first, we are going to identify what a lambda probe is utilized for, then, what are the lambda sensor complications on Toyota Highlander and how to fix them.

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What is a lambda task on Toyota Highlander?

So we begin our content with the benefit of a lambda sensor on Toyota Highlander , we will first discover what is the task of this probe and then how it functions.

Role of a lambda sensor on Toyota Highlander

First developed by Volvo in the 1970s, it began to appear on our cars in the 1990s with the first EURO 1 emission requirements. Also called oxygen sensor on Toyota Highlander , its goal is to control the amount of oxygen in the exhaust gases, this will allow the engine unit 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 Highlander

Before describing you the different complications of lambda probe on Toyota Highlander , we will look a little more in outline at its functioning to allow you to figure out exactly 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 job of controlling the amount of oxygen present in the exhaust gases . One could naively believe 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 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 inserted into the engine unit to optimize the combustion .

Lambda sensor issue on Toyota Highlander

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Finally, we are now going to attack the part you are absolutely most keen on this content, what to do if you have a lambda sensor issue on Toyota Highlander . In a first step we will discover how to find a lambda sensor HS and in a second step how to change it.

How to know if a lambda sensor on Toyota Highlander is HS

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It is important to know that a lambda sensor has generally a lifetime of 150 000 km , this data can fluctuate according to the year of your Toyota Highlander, your driving, and the good functioning of your engine unit. A poorly looked after engine unit that releases unburned gases may completely corrupt your lambda sensor. One of the clues that can warn you of a defective lambda sensor on Toyota Highlander may be the engine unit light turns on, if you want to turn off the engine light of your Toyota Highlander, do not think twice to visit our dedicated content to discover the process to follow. The only effective method to ensure that you have a lambda sensor issue on your Toyota Highlander and to complete your car to the diagnostic case, for that do not think twice to consult our tutorial which explains you Toyota Highlanderhow to read the fault code of a Toyota Highlander. Please be aware that if you have complications with one of your lambda sensors, the only remedy to correct them will be to change the defective sensor.

How to change a lambda sensor on Toyota Highlander?

And finally, we are going to focus on the correction of lambda sensor problems on Toyota Highlander , by explaining how to replace a lambda sensor.

The replacement of a lambda sensor is quite simple to carry out and you will be able to do it yourself with a minimal of tools and mechanical know-how. 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 defective the second one risks to drop you fairly quickly. To replace it, it will be necessary to put your Toyota Highlander 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 complications with your lambda sensor on Toyota Highlander.

To discover more tips on the Toyota Highlander, take a look at the Toyota Highlander category.