Modern vehicles are increasingly equipped 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 emitted by our vehicles. This is precisely the subject matter of our article of the day, we are going to look at the complications of the lambda sensor on Mazda 5 , this sensor as well known as oxygen sensor plays an essential purpose. To find out, first, we are going to find out what a lambda probe is employed for, then, what are the lambda sensor complications on Mazda 5 and how to fix them.

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What is a lambda role on Mazda 5?

So we begin our content with the interest of a lambda sensor on Mazda 5 , we will first see what is the role of this probe and then how it works.

Role of a lambda sensor on Mazda 5

First developed by Volvo in the 1970s, it began to show up on our cars in the 1990s with the first EURO 1 emission requirements. As well called oxygen sensor on Mazda 5 , its objective is to control the amount of oxygen in the exhaust gases, this will enable the engine unit to modify the air/fuel mixture to decrease the pollution emitted by the motor vehicle and lower the car’s fuel consumption.

Lambda sensor operation on Mazda 5

Before explaining you the different complications of lambda probe on Mazda 5 , we will look a little more in outline at its operation to allow you to figure out exactly 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 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 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 interest is to have more exact data by compiling the two probes. These data are sent to the ECU which will adapt the quantity of air and gasoline inserted into the engine unit to optimize the combustion .

Lambda sensor problem on Mazda 5

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Finally, we are now going to attack the part you are certainly most keen on this content, how to proceed if you have a lambda sensor problem on Mazda 5 . 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 Mazda 5 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 statistics can differ according to the year of your Mazda 5, your driving, and the good functioning of your engine unit. A poorly maintained engine unit that releases unburned gases may completely damaged your lambda sensor. One of the clues that can notify you of a defective lambda sensor on Mazda 5 might be the engine unit light turns on, if you want to turn off the engine light of your Mazda 5, do not hesitate to visit our dedicated content to see the procedure to follow. The only effective technique to be sure that you have a lambda sensor problem on your Mazda 5 and to pass your car to the diagnostic case, for that do not hesitate to seek advice from our tutorial which explains you Mazda 5how to read the fault code of a Mazda 5. Take note that if you have complications 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 Mazda 5?

And finally, we are going to concentrate on the correction of lambda sensor problems on Mazda 5 , by describing how to replace a lambda sensor.

The replacement of a lambda sensor is quite basic to execute and you will have the ability to do it yourself with a minimal of tools and mechanical knowledge. 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 Mazda 5 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 complications with your lambda sensor on Mazda 5.

To get more tips on the Mazda 5, take a look at the Mazda 5 category.