The Purpose of an Oxygen Sensor
courtesy of Bob, The Auto Answer Man
My mechanic says that I need to replace the oxygen sensors in my 1997 BMW. He really couldn't explain their function in English, so I was hoping that you could shed some light. Thanks for the help
The oxygen sensor senses how the engine is running based on the composition of the exhaust gas. If there is too much oxygen in the exhaust, then the engine is running too lean (add more fuel). If there is not enough oxygen in the exhaust, then the engine is running too rich (too much fuel). This sensor basically tells the on board computer what is happening so it can make the appropriate adjustments to the fuel mixture.
Bob, The Auto Answer Man
Have a car care question? Visit our automotive center and see if we've already answered it or a similar question.
Also in Home
- How to clean and restore cast-iron cookware
- Homemade fireplace logs
- Frugal ways to winterize your home
- Is it cost-effective to make your own laundry detergent?
- Recipes for homemade fabric fresheners
- Inexpensive reupholstery
- Make your own cleaners
- 5 ways your house can make you go broke
- 5 simple and affordable luxuries for your home
- How to keep your mortgage data safe from hackers
- 5 home renovations that can raise your insurance rate -- or lead to discounts
- The right way and wrong way to pay down your mortgage
- 6 cheap, effective home security solutions
- 3 ways (and 1 reason) to refinance a HELOC
- Flood insurance too high? You may have options
- Should I refinance my home equity line?
- Find the best mortgage rates in your area
- 3 ways to use a mortgage calculator
- Mortgage calculator: Calculate your payment and more
- Home equity calculator: HELOC vs. line of credit
- Mortgage refinance break-even calculator
- How much money can I borrow for a mortgage?