Recent cars are progressively equipped with new technologies, apart from the comfort of use it can bring, technology also has the advantage of saving fuel or reducing the pollution emitted by our cars. This is exactly the subject matter of our content of the day, we are going to look at the complications of the lambda sensor on GMC Terrain , this sensor also named oxygen sensor plays an important purpose. To find out, first, we are going to identify what a lambda probe is utilized for, then, what are the lambda sensor complications on GMC Terrain and how to solve them.
What is a lambda role on GMC Terrain?
So we start our content with the interest of a lambda sensor on GMC Terrain , we will first see what is the function of this probe and then how it functions.
Role of a lambda sensor on GMC Terrain
First created by Volvo in the 1970s, it began to appear on our cars in the 1990s with the first EURO 1 emission standards. Also called oxygen sensor on GMC Terrain , its mission is to control the amount of oxygen in the exhaust gases, this will enable the engine to change the air/fuel mixture to reduce the pollution emitted by the car and reduce the car’s fuel consumption.
Lambda sensor operation on GMC Terrain
Before describing you the different complications of lambda probe on GMC Terrain , we will look a little more in outline at its working to allow you to figure out precisely how it functions and thus to consider more serenely the correction of a problem related to it.
As we explained to you, a lambda probe has the task of controlling the amount of oxygen present in the exhaust gases . One could naively believe 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 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 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 to improve the combustion .
Lambda sensor issue on GMC Terrain
.
Finally, we are now going to attack the section you are certainly most enthusiastic about this content, how to handle it if you have a lambda sensor issue on GMC Terrain . In a first step we will see how to find a lambda sensor HS and in a second step how to change it.
How to know if a lambda sensor on GMC Terrain is HS
.
It is important to know that a lambda sensor has generally speaking a lifetime of 150 000 km , this info can vary according to the year of your GMC Terrain, your driving, and the good performance of your engine. A poorly taken care of engine that emits unburned gases may permanently damaged your lambda sensor. One of the clues that can notify you of a faulty lambda sensor on GMC Terrain may be the engine light comes on, if you want to turn off the engine light of your GMC Terrain, do not hesitate to visit our dedicated content to see the procedure to follow. The only effective way to be certain that you have a lambda sensor issue on your GMC Terrain and to complete your car to the diagnostic case, for that do not hesitate to seek advice from our tutorial which explains you GMC Terrainhow to read the fault code of a GMC Terrain. Please be aware that if you have complications with one of your lambda sensors, the just remedy to resolve them will be to change the faulty sensor.
How to change a lambda sensor on GMC Terrain?
And at last, we are going to focus on the correction of lambda sensor problems on GMC Terrain , by explaining how to replace a lambda sensor.
The replacement of a lambda sensor is quite very easy to execute and you will have the ability 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 GMC Terrain 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 GMC Terrain.
To get more tips on the GMC Terrain, take a look at the GMC Terrain category.
