Latest cars are more and more built with new technologies, apart from the comfort of use it can provide, technology as well has the advantage of saving fuel or reducing the pollution released by our cars. This is precisely the subject of our content page of the day, we are going to look at the problems of the lambda sensor on Subaru Outback , this sensor as well known as oxygen sensor plays an necessary role. To find out, first, we are going to identify what a lambda probe is employed for, then, what are the lambda sensor problems on Subaru Outback and how to resolve them.
What is a lambda fonction on Subaru Outback?
So we begin our article with the benefit of a lambda sensor on Subaru Outback , we will first see what is the job of this probe and then how it functions.
Role of a lambda sensor on Subaru Outback
First produced by Volvo in the 1970s, it began to appear on our cars in the 1990s with the first EURO 1 emission standards. As well called oxygen sensor on Subaru Outback , its objective is to regulate the amount of oxygen in the exhaust gases, this will allow the engine to adapt the air/fuel mixture to lower the pollution released by the motor vehicle and lower the car’s fuel consumption.
Lambda sensor process on Subaru Outback
Before describing you the different problems of lambda probe on Subaru Outback , we will look a little more in outline at its working to allow you to understand precisely how it functions and thus to consider more serenely the correction of a problem related to it.
As we informed 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 measured 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 benefit is to have more precise data by compiling the two probes. These data are sent to the ECU which will adapt the quantity of air and gasoline injected into the engine to improve the combustion .
Lambda sensor problem on Subaru Outback
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Finally, we are now going to attack the part you are obviously most enthusiastic about this article, how to proceed if you have a lambda sensor problem on Subaru Outback . 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 Subaru Outback is HS
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It is necessary to know that a lambda sensor has in general a lifetime of 150 000 km , this statistics can vary according to the year of your Subaru Outback, your driving, and the good functioning of your engine. A poorly taken care of engine that releases unburned gases may forever damaged your lambda sensor. One of the clues that can alert you of a defective lambda sensor on Subaru Outback might be the engine light comes on, if you want to turn off the engine light of your Subaru Outback, do not think twice to visit our dedicated article to see the process to follow. The only effective technique to ensure that you have a lambda sensor problem on your Subaru Outback and to pass your car to the diagnostic case, for that do not think twice to consult our guide which explains you Subaru Outbackhow to read the fault code of a Subaru Outback. Please be aware that if you have problems with one of your lambda sensors, the only remedy to resolve them will be to change the defective sensor.
How to change a lambda sensor on Subaru Outback?
And at last, we are going to concentrate on the correction of lambda sensor problems on Subaru Outback , by describing how to replace a lambda sensor.
The replacement of a lambda sensor is quite basic to perform and you will have the ability to do it yourself with a lowest 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 Subaru Outback 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 Subaru Outback.
To get more tips on the Subaru Outback, take a look at the Subaru Outback category.
