Q: Do I need to replace the lower O2 sensor or upper O2 sensor?

asked by on

Hi I guess you mentioned the lower o2 sensor is bad. is that correct. In fact I changed the upper o2 sensor couple of years ago.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Do I need to replace the lower O2 sensor or upper O2 sensor?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Can i fit a mitsubishi v6 into my hylux?

I would recommend searching around an online forum to see if anything like this has been done before. You could start with a google search for 1995 Toyota 4runner engine swap. This will likely lead you to multiple sources of...

Q: I put my car in drive but it won't go but it will go in reverse what could be wrong

Hi There, What you are describing may be a result of a faulty speed sensor, potentially low transmission fluid or a even a faulty transmission control solenoid. As your vehicle travels down the road, the computer analyzes data being sent...

Q: Q: No power when accelerating

Hello! I believe the problem is likely to do with the mass air flow sensor. When this sensor is at fault it will be sending a regular error inlet reading which will cause computer to incorrectly apply air fuel ratio....

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...