Recent cars are more and more pre-loaded 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 exactly the subject matter of our content page of the day, we are going to look at the problems of the lambda sensor on Nissan Altima , this sensor also called oxygen sensor plays an important purpose. To find out, first, we are going to find out what a lambda probe is used for, then, what are the lambda sensor problems on Nissan Altima and how to solve them.


What is a lambda role on Nissan Altima?

So we start our article with the interest of a lambda sensor on Nissan Altima , we will first see what is the function of this probe and then how it works.

Role of a lambda sensor on Nissan Altima

First produced by Volvo in the 1970s, it began to show up on our cars in the 1990s with the first EURO 1 emission specifications. As well called oxygen sensor on Nissan Altima , its goal is to control the amount of oxygen in the exhaust gases, this will allow the engine unit to modify the air/fuel mixture to lower the pollution released by the car and reduce the car’s fuel consumption.

Lambda sensor procedure on Nissan Altima

Before explaining you the different problems of lambda probe on Nissan Altima , we will look a little more in outline at its working to allow you to understand precisely how it works and thus to consider more serenely the correction of a problem associated with it.
As we informed you, a lambda probe has the task of controlling the amount of oxygen present in the exhaust gases . One could naively presume 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 just one lambda sensor needed before the catalyst, but with the arrival of more drastic specifications 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 modify the quantity of air and gasoline injected into the engine unit to optimize the combustion .

Lambda sensor issue on Nissan Altima

At last, we are now going to attack the part you are absolutely most keen on this article, how to proceed if you have a lambda sensor issue on Nissan Altima . In a first step we will find out how to find a lambda sensor HS and in a second step how to replace it.

How to know if a lambda sensor on Nissan Altima is HS

It is important to know that a lambda sensor has in general a lifetime of 150 000 km , this info can vary according to the year of your Nissan Altima, your driving, and the good functioning of your engine unit. A poorly taken care of engine unit that emits unburned gases may forever alter your lambda sensor. One of the clues that can notify you of a defective lambda sensor on Nissan Altima might be the engine unit light turns on, if you want to turn off the engine light of your Nissan Altima, do not hesitate to seek advice from our dedicated article to see the process to follow. The only effective method to make sure that you have a lambda sensor issue on your Nissan Altima and to pass your car to the diagnostic case, for that do not hesitate to seek advice from our tutorial which explains you Nissan Altimahow to read the fault code of a Nissan Altima. Take note that if you have problems with one of your lambda sensors, the just solution to correct them will be to replace the defective sensor.

How to replace a lambda sensor on Nissan Altima?

And at last, we are going to focus on the correction of lambda sensor problems on Nissan Altima , by explaining how to replace a lambda sensor.

The replacement of a lambda sensor is quite very easy to carry out and you will be able 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 replace 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 Nissan Altima 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 Nissan Altima.

To get more tips on the Nissan Altima, take a look at the Nissan Altima category.