Modern cars are increasingly equipped with new technologies, apart from the comfort of use it can bring, technology also has the advantage of saving fuel or reducing the pollution released by our cars. This is precisely the subject matter of our content of the day, we are going to look at the problems of the lambda sensor on Toyota Avalon , this sensor also named oxygen sensor plays an important role. 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 Avalon and how to resolve them.


What is a lambda role on Toyota Avalon?

So we start our content page with the interest of a lambda sensor on Toyota Avalon , we will first see what is the job of this probe and then how it functions.

Role of a lambda sensor on Toyota Avalon

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 Avalon , its mission is to regulate the amount of oxygen in the exhaust gases, this will allow the engine to modify the air/fuel mixture to reduce the pollution released by the motor vehicle and reduce the car’s fuel consumption.

Lambda sensor procedure on Toyota Avalon

Before describing you the different problems of lambda probe on Toyota Avalon , we will look a little more in outline at its operation to allow you to understand precisely how it functions and thus to consider more serenely the correction of a problem associated with it.
As we explained to you, a lambda probe has the task of managing the amount of oxygen present in the exhaust gases . One could naively presume 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 just 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 interest is to have more precise data by compiling the two probes. These data are sent to the ECU which will adjust the quantity of air and gasoline inserted into the engine to optimize the combustion .

Lambda sensor problem on Toyota Avalon

At last, we are now going to attack the section you are certainly most enthusiastic about this content page, how to handle it if you have a lambda sensor problem on Toyota Avalon . In a first step we will find out how to identify a lambda sensor HS and in a second step how to replace it.

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

It is important to know that a lambda sensor has generally speaking a lifetime of 150 000 km , this info can differ according to the year of your Toyota Avalon, your driving, and the good performance of your engine. A poorly taken care of engine that emits unburned gases may completely damaged your lambda sensor. One of the clues that can warn you of a faulty lambda sensor on Toyota Avalon may be the engine light comes on, if you want to turn off the engine light of your Toyota Avalon, do not think twice to consult our dedicated content page to see the process to stick to. The only effective way to ensure that you have a lambda sensor problem on your Toyota Avalon and to pass your car to the diagnostic case, for that do not think twice to consult our tutorial which explains you Toyota Avalonhow to read the fault code of a Toyota Avalon. Please note that if you have problems with one of your lambda sensors, the just remedy to solve them will be to replace the faulty sensor.

How to replace a lambda sensor on Toyota Avalon?

And finally, we are going to focus on the correction of lambda sensor problems on Toyota Avalon , by detailing 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 lowest 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 quickly. To replace it, it will be necessary to put your Toyota Avalon 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 Avalon.

If you want more guides on the Toyota Avalon, go to our Toyota Avalon category.