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Ron Z.
Ron Z., - Honda Tech -
Category: Honda
Satisfied Customers: 18540
Experience:  18+yrs experience. State Inspector and Honda Diagnostics
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how to replace and oxygen sensor on a 1993 honda accord ex

Customer Question

how to replace and oxygen sensor on a 1993 honda accord ex
Submitted: 6 years ago.
Category: Honda
Expert:  Ron Z. replied 6 years ago.


Which one are you looking to change?


Customer: replied 6 years ago.
The oxygen sensor
Expert:  Ron Z. replied 6 years ago.


There are 2.



Customer: replied 6 years ago.
I did not know this I only purchased 1 are they both the same thing and where are they located
Expert:  Ron Z. replied 6 years ago.


They are not the same and not interchangable. I would strongly recommend you find out which one needs to be replaced, as installing the wrong sensor will cause problems. And replacing the wrong sensor will get expensive. I can give you locations, and the procedure is the same for both, but like I say, find out for sure which one is faulty. One is located in the exhaust manifold under hood, the other in the exhaust pipe under the vehicle.



  • If "sensor2" raise and support the vehcile
  • For both: disconnect the electrical connector
  • Remove the oxygen sensor.


Ron Z. and other Honda Specialists are ready to help you
Customer: replied 6 years ago.
Do I need special tools for this?
And thank you for your help I will accept the answer
Expert:  Ron Z. replied 6 years ago.


No. No special tools needed at all. It's actually a very easy DIY job! You'll have no probs!