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Oxygen Sensor

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A new Bosch oxygen sensor is just clicks away in our online catalog! Compare Leading Brands of Automotive Oxygen Sensors including NTK, NGK, Denso, Walker and Bosch. Using a new Bosch oxygen sensor in your vehicle helps to control fuel and ignition systems. You'll get the most out of your ride's emissions and fuel economy when you install any of these awesome Bosch oxygen sensors! Create the high performance ride you've always wanted with all the parts you could think of at wholesale prices he at Auto Parts Warehouse. There's never been lower pricing on these top quality Bosch oxygen sensors! Navigate our online catalog and find the Bosch O2 sensor you're looking for fast and easy. Are you replacing your catalytic converter on your vehicles exhaust system? If you are, then you need to replace that oxygen sensing unit along with it. Most vehicles need the oxygen sensors replaced every 60,000 miles.

Buying Guides
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Date Published: July 30,2014

How to Shop for a New Oxygen Sensor

Every automobile manufactured after the 1980s is equipped with an oxygen sensor. This component measures the ratio of air and gasoline in the engine and feeds the data to the vehicle's computer. With an oxygen sensor, your engine runs more efficiently and produces as few emissions as possible. If your car's running with a busted oxygen sensor, you better get a new one before your engine's efficiency takes a nosedive and your gas bills skyrocket. We know that looking for the right replacement oxygen sensor can be very tricky, that's why we've come up with a guide for you to keep in mind when shopping for a new oxygen sensor.

Which oxygen sensor should you buy?

There are a lot of questions about which oxygen sensor to replace. In fact, failures are common among cars especially when the wrong sensor is installed. With today's automobiles equipped with at least two, or even three or four oxygen sensors, it can be very confusing as to which one is not working correctly. There are probably a lot of sensor codes to choose from and here's a tip to help you sense the right oxygen sensor.

Oxygen sensors are always numbered this way:
Bank 1 Sensor 1
Bank 2 Sensor 1
Bank 1 Sensor 2
Bank 2 Sensor 2

Other manufacturers code their oxygen sensors this way, which is why it can sometimes be very confusing. However, they all mean the same:
Sensor 1/1 or O2s 1/1
Sensor 2/1 or O2s 2/1
Sensor 1/2 or O2s 1/2
Sensor 2/2 or O2s 2/2

Now here's a detailed list to know which is which:

  • Bank 1 is located at the side of the engine where cylinder #1 is found as well.
  • Bank 2 is on the opposite side of Bank 1.
  • On a 4-cylinder engine, there is only one bank that's called Bank 1.
  • Sensor 1 is the upstream sensor located before the catalytic converter.
  • Sensor 2 is the downstream sensor located after the catalytic converter.
  • Sensor 3 is the only downstream sensor in situations where there are two sensors before the catalytic converter and only one after it. On other cars, this is read as Bank 1 Sensor 3.

With these detailed tips on how to sense the right oxygen sensor, you'd be sure to buy the right replacement part at your store. Be sure to purchase one from a trusted brand to avoid any complications you might experience with ones that are bought from local junkyards. Enjoy your shopping!

Repair Guides
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Date Published: July 30,2014

Oxygen Sensor Maintenance: Easy DIY Steps

Oxygen sensors are these tiny devices inside the car that basically balance the fuel to oxygen ratio. It is important to keep this in top shape at all times since it helps in controlling the emissions of the vehicle. If you're an experienced DIYer, then you're at an advantage here. Repairing these auto parts yourself are better than taking it to the mechanic and end up being buried in expensive fees. However, if you do it yourself, you get to save up and do it at your most convenient time. All you need are tools and a garage to work in and you can repair your worn-out oxygen sensor in no time!

Difficulty level: Moderate

What you need:

  1. Jack
  2. Jack stand
  3. Wire brush
  4. Spray air
  5. Socket set
  6. Gas
  7. Plastic container

Step 1: Find out which sensor needs to be repaired. It's a good idea to take it to an auto shop to run a free diagnostic test to find out which sensor needs to be fixed.

Step 2: Using the jack, jack up your car and set the jack stands in place. Then, find the damaged oxygen sensor and take it out. Remove it by unbolting the retaining bolts using a socket set and unplug it from the electric wiring harness.

Step 3: Slowly but thoroughly, scrub the metal tube-shaped end of the sensor using a wire brush. To clean it more, get the compressed air and spray it.

Step 4: Get the plastic container and fill it with gasoline. Get the metal tube-shaped half of the oxygen sensor and let it sit in the gasoline-filled container over night.

Step 5: The next day, remove it and towel it dry. Reinstall the sensor back in place by placing the retaining bolts back in using the socket set. Then, plug the electric wiring back in.

After doing all these steps, you're sure to get your oxygen sensor clean. This should even let you travel the miles before having to completely replace it. With just a few tools, you can get your oxygen sensor repaired easily in no time at all!