Latest automobiles are more and more equipped 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 content page of the day, we are going to look at the complications of the lambda sensor on Mercury Grand Marquis , this sensor also 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 Mercury Grand Marquis and how to fix them.

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What is a lambda fonction on Mercury Grand Marquis?

So we begin our content with the benefit of a lambda sensor on Mercury Grand Marquis , we will first see what is the purpose of this probe and then how it works.

Role of a lambda sensor on Mercury Grand Marquis

First designed by Volvo in the 1970s, it began to appear on our cars in the 1990s with the first EURO 1 emission specifications. As well called oxygen sensor on Mercury Grand Marquis , its goal is to control the amount of oxygen in the exhaust gases, this will allow the engine to adapt the air/fuel mixture to decrease the pollution released by the motor vehicle and lower the car’s fuel consumption.

Lambda sensor procedure on Mercury Grand Marquis

Before describing you the different complications of lambda probe on Mercury Grand Marquis , we will look a little more in detail at its working 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 explained to 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 measured 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 required 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 benefit 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 injected into the engine to improve the combustion .

Lambda sensor issue on Mercury Grand Marquis

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Finally, we are now going to attack the part you are certainly most interested in this content, how to proceed if you have a lambda sensor issue on Mercury Grand Marquis . In a first step we will discover how to identify a lambda sensor HS and in a second step how to change it.

How to know if a lambda sensor on Mercury Grand Marquis is HS

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It is essential to know that a lambda sensor has in general a lifetime of 150 000 km , this data can vary according to the year of your Mercury Grand Marquis, your driving, and the good working of your engine. A poorly maintained engine that emits unburned gases may completely damaged your lambda sensor. One of the clues that can alert you of a faulty lambda sensor on Mercury Grand Marquis may be the engine light turns on, if you want to turn off the engine light of your Mercury Grand Marquis, do not think twice to seek advice from our dedicated content to see the process to stick to. The only effective method to be certain that you have a lambda sensor issue on your Mercury Grand Marquis and to pass your car to the diagnostic case, for that do not think twice to consult our tutorial which explains you Mercury Grand Marquishow to read the fault code of a Mercury Grand Marquis. Please be aware that if you have complications with one of your lambda sensors, the just remedy to correct them will be to change the faulty sensor.

How to change a lambda sensor on Mercury Grand Marquis?

And at last, we are going to concentrate on the correction of lambda sensor problems on Mercury Grand Marquis , by detailing 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 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 faulty the second one risks to drop you quickly. To replace it, it will be necessary to put your Mercury Grand Marquis 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 Grand Marquis.

To find more tips on the Mercury Grand Marquis, take a look at the Mercury Grand Marquis category.