Latest cars are increasingly equipped with new technologies, apart from the comfort of use it can provide, technology also has the advantage of saving fuel or reducing the pollution released by our cars. This is exactly the subject matter of our article content of the day, we are going to look at the problems of the lambda sensor on Volvo XC90 , this sensor also called oxygen sensor plays an essential role. To find out, first, we are going to identify what a lambda probe is utilized for, then, what are the lambda sensor problems on Volvo XC90 and how to resolve them.


What is a lambda purpose on Volvo XC90?

So we start our article with the benefit of a lambda sensor on Volvo XC90 , we will first see what is the purpose of this probe and then how it works.

Role of a lambda sensor on Volvo XC90

First created 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 Volvo XC90 , its task is to regulate the amount of oxygen in the exhaust gases, this will allow the engine unit to modify the air/fuel mixture to decrease the pollution released by the car and lower the car’s fuel consumption.

Lambda sensor procedure on Volvo XC90

Before describing you the different problems of lambda probe on Volvo XC90 , we will look a little more in detail at its working to allow you to understand precisely how it works and thus to consider more serenely the correction of a problem related to 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 determined 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 exact 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 unit to optimize the combustion .

Lambda sensor issue on Volvo XC90

Finally, we are now going to attack the section you are obviously most keen on this article, what to do if you have a lambda sensor issue on Volvo XC90 . In a first step we will see how to find a lambda sensor HS and in a second step how to change it.

How to know if a lambda sensor on Volvo XC90 is HS

It is essential to know that a lambda sensor has in general a lifetime of 150 000 km , this data can vary according to the year of your Volvo XC90, your driving, and the good working of your engine unit. A poorly looked after engine unit that produces unburned gases may permanently alter your lambda sensor. One of the clues that can warn you of a faulty lambda sensor on Volvo XC90 might be the engine unit light turns on, if you want to turn off the engine light of your Volvo XC90, do not hesitate to visit our dedicated article to see the process to follow. The only effective technique to be certain that you have a lambda sensor issue on your Volvo XC90 and to complete your car to the diagnostic case, for that do not hesitate to seek advice from our tutorial which explains you Volvo XC90how to read the fault code of a Volvo XC90. Please be aware that if you have problems with one of your lambda sensors, the only solution to correct them will be to change the faulty sensor.

How to change a lambda sensor on Volvo XC90?

And at last, we are going to focus on the correction of lambda sensor problems on Volvo XC90 , by detailing how to replace a lambda sensor.

The replacement of a lambda sensor is quite basic to accomplish and you will have the ability 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 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 necessary to put your Volvo XC90 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 Volvo XC90.

To discover more tips on the Volvo XC90, take a look at the Volvo XC90 category.