Q: Q: o2 sensor

asked by on

I was just wondering what's the difference between an o2 sensor for an accord vs one for a civic or for that matter one for toyota I'm not talking about downstream or upstream All the sensors look the same

My car has 1850000 miles.
My car has a manual transmission.

If you are referring to 1991 model years of the Accord versus the Civic, the principal difference is the Accord used a heated oxygen sensor while the Civic did not. To compare and contrast Toyota sensors, I would need a model year and model. Broadly, across models, the principal of operation of these oxygen sensors is identical. The sensor simply produces a voltage output that is proportional to the amount of oxygen contained in the exhaust stream. That voltage output provides the necessary data input to the engine computer to optimize fuel delivery (minimize fuel consumption and minimize emissions). The differences between the sensors are principally in the mounting and case and whether the sensor has an internal heater (all newer ones are heated). Oxygen sensors are easily tested using an appropriate automotive scope which can measure and graph the sensor output. Finally, these sensors do wear out and indeed the sensor will often degrade enough to warrant replacement well before the check engine light will come on, signifying total failure. If you desire an inspection of these sensors as they exist on your car, please request O2 sensor diagnostic/replacement service and the responding certified mechanic will carefully test the output of your sensors. If you have further questions or concerns, do not hesitate to re-contact YourMechanic because we want you to make the most of your repair dollars and help you to get the best possible results.

Was this answer helpful?
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. Q: 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: How do I deactivate the auto call transfer function on the HandsFreeLink?

Your HandsFreeLink® (HFL) system can automatically transfer a call from your cell phone to the car if the key is set to I or II. However, you can change it so that the system doesn’t automatically transfer the call. To...

Q: my friend ran over a curb with a lowered car and now the car wont move. its manual and when you put it in any gear it wont move. a

Hello. It sounds like when the vehicle hit you also had a cv axle failure. Any suspension damage can change the angle at which the axle sits causing it to either fail or pop out of the transmission. I would...

Q: Water getting inside driver side door 2013 Honda Pilot

Hi - yes, it is quite likely the water leak you describe is the source of failed electrical functionality. If the weatherseal around the driver door glass is leaking, allowing water to splash on the master switch assembly for windows,...

Related articles

P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.