Latest vehicles are progressively built with new technologies, apart from the comfort of use it can bring, 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 Mercury Mariner , this sensor as well called oxygen sensor plays an essential function. To find out, first, we are going to identify what a lambda probe is utilized for, then, what are the lambda sensor complications on Mercury Mariner and how to solve them.
What is a lambda purpose on Mercury Mariner?
So we begin our article with the interest of a lambda sensor on Mercury Mariner , we will first see what is the function of this probe and then how it works.
Role of a lambda sensor on Mercury Mariner
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. Also called oxygen sensor on Mercury Mariner , its task is to control the amount of oxygen in the exhaust gases, this will allow the engine unit to adapt the air/fuel mixture to decrease the pollution emitted by the motor vehicle and reduce the car’s fuel consumption.
Lambda sensor process on Mercury Mariner
Before describing you the different complications of lambda probe on Mercury Mariner , we will look a little more in detail at its operation to allow you to figure out precisely how it works and thus to consider more serenely the correction of a problem associated with 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 calculated 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 required 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 unit to optimize the combustion .
Lambda sensor problem on Mercury Mariner
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Finally, we are now going to attack the section you are undoubtedly most interested in this article, how to proceed if you have a lambda sensor problem on Mercury Mariner . 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 Mercury Mariner is HS
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It is essential to know that a lambda sensor has generally a lifetime of 150 000 km , this info can vary according to the year of your Mercury Mariner, your driving, and the good functioning of your engine unit. A poorly maintained engine unit that produces unburned gases may forever corrupt your lambda sensor. One of the clues that can alert you of a defective lambda sensor on Mercury Mariner may be the engine unit light turns on, if you want to turn off the engine light of your Mercury Mariner, do not hesitate to seek advice from our dedicated article to see the process to follow. The only effective way to be sure that you have a lambda sensor problem on your Mercury Mariner and to pass your car to the diagnostic case, for that do not hesitate to seek advice from our tutorial which explains you Mercury Marinerhow to read the fault code of a Mercury Mariner. Take note that if you have complications with one of your lambda sensors, the only remedy to resolve them will be to replace the defective sensor.
How to replace a lambda sensor on Mercury Mariner?
And at last, we are going to concentrate on the correction of lambda sensor problems on Mercury Mariner , by explaining how to replace a lambda sensor.
The replacement of a lambda sensor is quite simple to accomplish and you will be able to do it yourself with a minimum 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 quickly. To replace it, it will be necessary to put your Mercury Mariner 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 Mercury Mariner.
If you wish more tutorials on the Mercury Mariner, go to our Mercury Mariner category.
