Recent automobiles are more and more 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 released by our automobiles. This is exactly the subject of our article content of the day, we are going to look at the problems of the lambda sensor on Volvo S90 , this sensor also called oxygen sensor plays an essential purpose. To find out, first, we are going to identify what a lambda probe is employed for, then, what are the lambda sensor problems on Volvo S90 and how to resolve them.

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What is a lambda fonction on Volvo S90?

So we begin our article with the interest of a lambda sensor on Volvo S90 , we will first discover what is the task of this probe and then how it functions.

Role of a lambda sensor on Volvo S90

First created by Volvo in the 1970s, it began to show up on our cars in the 1990s with the first EURO 1 emission standards. As well called oxygen sensor on Volvo S90 , its task is to control the amount of oxygen in the exhaust gases, this will allow the engine to change the air/fuel mixture to reduce the pollution released by the motor vehicle and reduce the car’s fuel consumption.

Lambda sensor procedure on Volvo S90

Before explaining you the different problems of lambda probe on Volvo S90 , 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 related to it.
As we told you, a lambda probe has the task of managing 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 standards there are now 2 lambda sensors, one before and one after the catalyst . The interest 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 inserted into the engine to optimize the combustion .

Lambda sensor problem on Volvo S90

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Finally, we are now going to attack the part you are certainly most enthusiastic about this article, how to handle it if you have a lambda sensor problem on Volvo S90 . In a first step we will see how to identify a lambda sensor HS and in a second step how to change it.

How to know if a lambda sensor on Volvo S90 is HS

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It is essential to know that a lambda sensor has generally speaking a lifetime of 150 000 km , this data can vary according to the year of your Volvo S90, your driving, and the good performance of your engine. A poorly looked after engine that releases unburned gases may completely damaged your lambda sensor. One of the clues that can warn you of a defective lambda sensor on Volvo S90 might be the engine light turns on, if you want to turn off the engine light of your Volvo S90, do not hesitate to consult our dedicated article to discover the procedure to stick to. The only effective method to make sure that you have a lambda sensor problem on your Volvo S90 and to complete your car to the diagnostic case, for that do not hesitate to consult our tutorial which explains you Volvo S90how to read the fault code of a Volvo S90. Take note that if you have problems with one of your lambda sensors, the only solution to solve them will be to change the defective sensor.

How to change a lambda sensor on Volvo S90?

And at last, we are going to concentrate on the correction of lambda sensor problems on Volvo S90 , by describing how to replace a lambda sensor.

The replacement of a lambda sensor is quite very easy to execute 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 defective the second one risks to drop you fairly quickly. To replace it, it will be required to put your Volvo S90 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 S90.

To discover more tips on the Volvo S90, take a look at the Volvo S90 category.