Latest 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 released by our cars. This is precisely the subject of our article content of the day, we are going to look at the problems of the lambda sensor on Chevrolet Cobalt , this sensor also called oxygen sensor plays an necessary purpose. 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 Chevrolet Cobalt and how to solve them.
What is a lambda role on Chevrolet Cobalt?
So we begin our article with the benefit of a lambda sensor on Chevrolet Cobalt , we will first see what is the task of this probe and then how it functions.
Role of a lambda sensor on Chevrolet Cobalt
First created 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 Chevrolet Cobalt , its task is to regulate the amount of oxygen in the exhaust gases, this will enable the engine unit to adapt the air/fuel mixture to reduce the pollution released by the motor vehicle and reduce the car’s fuel consumption.
Lambda sensor operation on Chevrolet Cobalt
Before explaining you the different problems of lambda probe on Chevrolet Cobalt , we will look a little more in outline at its operation to allow you to discover precisely how it functions and thus to consider more serenely the correction of a problem associated with it.
As we told you, a lambda probe has the task of managing 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 only 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 modify the quantity of air and gasoline injected into the engine unit to improve the combustion .
Lambda sensor problem on Chevrolet Cobalt
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Finally, we are now going to attack the part you are certainly most keen on this article, how to handle it if you have a lambda sensor problem on Chevrolet Cobalt . In a first step we will discover how to locate a lambda sensor HS and in a second step how to change it.
How to know if a lambda sensor on Chevrolet Cobalt is HS
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It is necessary to know that a lambda sensor has generally speaking a lifetime of 150 000 km , this statistics can vary according to the year of your Chevrolet Cobalt, your driving, and the good working of your engine unit. A poorly looked after engine unit that emits unburned gases may permanently corrupt your lambda sensor. One of the clues that can notify you of a defective lambda sensor on Chevrolet Cobalt might be the engine unit light turns on, if you want to turn off the engine light of your Chevrolet Cobalt, do not think twice to consult our dedicated article to see the procedure to follow. The only effective technique to make sure that you have a lambda sensor problem on your Chevrolet Cobalt and to complete your car to the diagnostic case, for that do not think twice to seek advice from our guide which explains you Chevrolet Cobalthow to read the fault code of a Chevrolet Cobalt. Please note that if you have problems with one of your lambda sensors, the only remedy to solve them will be to change the defective sensor.
How to change a lambda sensor on Chevrolet Cobalt?
And at last, we are going to concentrate on the correction of lambda sensor problems on Chevrolet Cobalt , by explaining how to replace a lambda sensor.
The replacement of a lambda sensor is quite basic to perform and you will be able to do it yourself with a lowest 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 defective the second one risks to drop you quickly. To replace it, it will be necessary to put your Chevrolet Cobalt 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 Chevrolet Cobalt.
If you need more tutorials on the Chevrolet Cobalt, go to our Chevrolet Cobalt category.
