Does anyone knows how to locate oxygen sensors?
I replaced one right under the driver's seat & outside of car but, I am having hard time finding 2nd one!

Please help,

Bruce

There will likely be one located in each exhaust manifold (upstream) and after the catalytic converter (downstream). Depending upon the code(s) being thrown, you should be able to determine which sensors are involved.

Here's a link that may help:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563.html#post223376

Be sure to go with Denso oxygen sensors--stay away from Bosch.