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
- Tax consequences for selling your home in your 50's and 60's
- Should you refinance your home?
- How to repair ripped window and door screens
- What makes my electric bill so high?
- Homemade cleaner for jetted tubs, shower heads & sprayers
- How to remove urine stains from a hardwood floor
- Finding furniture for smaller spaces
- 10 ways to save money on your utility bill
- 5 simple and affordable luxuries for your home
- 5 frugal ways to expand your living space
- Top 10 DIY mistakes made by home 'handymen'
- 6 ways to save on home heating
- 7 ghastly critters that will eat your house
- 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?
- Who offers the most home insurance discounts?