Modern cars are progressively furnished 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 released by our cars. This is precisely the subject of our article of the day, we are going to look at the problems of the lambda sensor on Cadillac XTS , this sensor as well called oxygen sensor plays an important function. To find out, first, we are going to find out what a lambda probe is employed for, then, what are the lambda sensor problems on Cadillac XTS and how to fix them.
What is a lambda fonction on Cadillac XTS?
So we start our content with the interest of a lambda sensor on Cadillac XTS , we will first discover what is the role of this probe and then how it works.
Role of a lambda sensor on Cadillac XTS
First produced by Volvo in the 1970s, it began to appear on our cars in the 1990s with the first EURO 1 emission requirements. As well called oxygen sensor on Cadillac XTS , its mission is to regulate the amount of oxygen in the exhaust gases, this will enable the engine unit to modify the air/fuel mixture to reduce the pollution released by the car and reduce the car’s fuel consumption.
Lambda sensor operation on Cadillac XTS
Before explaining you the different problems of lambda probe on Cadillac XTS , we will look a little more in outline at its working to allow you to discover precisely how it works and thus to consider more serenely the correction of a problem related to it.
As we informed you, a lambda probe has the job of managing the amount of oxygen present in the exhaust gases . One could naively presume 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 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 modify the quantity of air and gasoline inserted into the engine unit to improve the combustion .
Lambda sensor problem on Cadillac XTS
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At last, we are now going to attack the part you are absolutely most keen on this content, how to handle it if you have a lambda sensor problem on Cadillac XTS . In a first step we will find out how to identify a lambda sensor HS and in a second step how to change it.
How to know if a lambda sensor on Cadillac XTS is HS
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It is important to know that a lambda sensor has generally a lifetime of 150 000 km , this data can fluctuate according to the year of your Cadillac XTS, your driving, and the good working of your engine unit. A poorly looked after engine unit that produces unburned gases may permanently corrupt your lambda sensor. One of the clues that can warn you of a faulty lambda sensor on Cadillac XTS might be the engine unit light turns on, if you want to turn off the engine light of your Cadillac XTS, do not think twice to seek advice from our dedicated content to discover the process to follow. The only effective way to be certain that you have a lambda sensor problem on your Cadillac XTS and to pass your car to the diagnostic case, for that do not think twice to consult our guide which explains you Cadillac XTShow to read the fault code of a Cadillac XTS. Take note that if you have problems with one of your lambda sensors, the just solution to solve them will be to change the faulty sensor.
How to change a lambda sensor on Cadillac XTS?
And at last, we are going to focus on the correction of lambda sensor problems on Cadillac XTS , by detailing how to replace a lambda sensor.
The replacement of a lambda sensor is quite very easy to perform and you will have the ability 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 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 fairly quickly. To replace it, it will be required to put your Cadillac XTS 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 Cadillac XTS.
If you have any further questions about the Cadillac XTS, do not hesitate to consult our Cadillac XTS category.
