Why You Have an O2 Sensor (Oxygen Sensor)
October 25, 2020
October 25, 2020
If someone asked you what gas made up the largest portion of the atmosphere, what would you guess? Well, it's not oxygen; it only makes up 20.9 percent. But since we're talking about oxygen, you should know that your vehicle uses oxygen sensors to make sure your engine is running the way it should.
The oxygen sensors measure how much oxygen is in your exhaust. If there's too much, it means there's a problem with the mixture of fuel and air. The sensor sends signals to computers in your engine and adjusts the mixture so it maximizes performance and efficiency. It does this constantly.
Many vehicles have multiple oxygen sensors. Some have one close to the engine, another close to the muffler. Two measurements are better than one since they allow readings to be more accurate. You may have a vehicle with a dual exhaust, so you'd have twice as many oxygen sensors.
Your oxygen sensors can fail. One thing that can damage them is contamination from bad fuel. The sensors can simply wear out, though they usually last a long time. It's not unusual for an oxygen sensor to last 100,000 miles/160,000 km. One more thing that can cause an oxygen sensor to fail is residue from an engine that's burning oil. Plus contaminants from the road like salt can also cause problems.
Here are some signs that your oxygen sensors might be failing.
Head to your service facility and tell your advisor what symptoms your vehicle is experiencing. They have the equipment and training to track down the issue. Note that simply replacing the oxygen sensor is often not enough since it doesn't get to the root of the problem; other repairs may be needed.
So make sure your oxygen sensors are working the way they should be. Oh, and back to the question of what gas makes up most of the Earth's air? It's nitrogen, which comprises 78 percent of the air we—and our engines—breathe.
South Side Garage
9117 S WALKER AVE
OKLAHOMA CITY, Oklahoma 73139
405-308-1514
http://www.thesouthsidegarage.com
March 30, 2025
If you keep up on technology trends, then you may be intrigued about synthetic motor oil. It was introduced in the 1960s when Mobil came up with it. Mobil's oil was different from conventional motor oil because it was first broken down to its basic molecules. Then, Mobil removed additional imp... More
March 23, 2025
If your vehicle makes a grinding sound when you turn the steering wheel, it's speaking to you. No, really, it is. So listen to what it's saying and you could avoid a much more costly repair down the road. A grinding sound coming from the front of your vehicle when you are turning can offer some... More
March 16, 2025
OKLAHOMA CITY drivers may feel intimidated when they take their vehicles to a service center. They have questions but aren't sure how to ask. They don't want to feel embarrassed about their lack of knowledge. They don't want to make the service technician feel that they don't trust him.If your s... More