Recent automobiles are more and more built 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 precisely the subject matter of our article of the day, we are going to look at the problems of the lambda sensor on Lexus ES , this sensor also named oxygen sensor plays an necessary purpose. To find out, first, we are going to find out what a lambda probe is utilized for, then, what are the lambda sensor problems on Lexus ES and how to solve them.

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What is a lambda task on Lexus ES?

So we begin our article with the benefit of a lambda sensor on Lexus ES , we will first discover what is the role of this probe and then how it functions.

Role of a lambda sensor on Lexus ES

First created by Volvo in the 1970s, it began to appear on our cars in the 1990s with the first EURO 1 emission standards. As well called oxygen sensor on Lexus ES , its mission 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 car and lower the car’s fuel consumption.

Lambda sensor operation on Lexus ES

Before describing you the different problems of lambda probe on Lexus ES , we will look a little more in detail 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 told you, a lambda probe has the job of controlling the amount of oxygen present in the exhaust gases . One could naively think 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 only one lambda sensor needed 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 benefit is to have more precise data by compiling the two probes. These data are sent to the ECU which will adapt the quantity of air and gasoline injected into the engine to improve the combustion .

Lambda sensor problem on Lexus ES

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Finally, we are now going to attack the part you are undoubtedly most enthusiastic about this article, how to handle it if you have a lambda sensor problem on Lexus ES . In a first step we will find out how to find a lambda sensor HS and in a second step how to replace it.

How to know if a lambda sensor on Lexus ES is HS

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It is necessary to know that a lambda sensor has generally a lifetime of 150 000 km , this data can fluctuate according to the year of your Lexus ES, 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 defective lambda sensor on Lexus ES might be the engine light turns on, if you want to turn off the engine light of your Lexus ES, do not think twice to consult our dedicated article to discover the process to stick to. The only effective technique to be sure that you have a lambda sensor problem on your Lexus ES and to complete your car to the diagnostic case, for that do not think twice to consult our guide which explains you Lexus EShow to read the fault code of a Lexus ES. Please note that if you have problems with one of your lambda sensors, the only remedy to correct them will be to replace the defective sensor.

How to replace a lambda sensor on Lexus ES?

And finally, we are going to concentrate on the correction of lambda sensor problems on Lexus ES , by detailing how to replace a lambda sensor.

The replacement of a lambda sensor is quite very easy to accomplish 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 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 necessary to put your Lexus ES 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 Lexus ES.

If you wish more tutorials on the Lexus ES, go to our Lexus ES category.