For those that have known my Mexican adventures one of the worst aspects was dealing with the gasoline. Both my air/fuel sensors (A/F Sensors) and O2 Sensor suffered. Recently I replaced my a/f sensors, but now came time to replace the last sensor, the O2 sensor or Oxygen Sensor at Bank 1, Sensor 2, which is after the main catalytic converter underneath the vehicle.
This is no easy task but the tools are a little simpler.
One socket wrench with both a 14mm and a 12mm extension.
A Denso 234-4215 Oxygen Sensor
Rugged black electrical tape (not the shiny vinyl stuff)
One forward note:
I had the tube modified where the O2 sensor fits modified in Mexico. It is bigger, but the O2 sensor bung is exactly the same.
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Now before you can move the seat, there are a few electrical connections underneath the front area of the seat that need to be disconnected. First, you will see a yellow electrical connector shown here below.
I should mention that technically the carpet needs to be pulled up in order to get to the sensor connection area. I am not going to prescribe one certain way or another as far as getting to the connection area, but I did tear up a bit of my carpet to show everyone exactly where the sensor is and what you will have to deal with. It may be possible to not even remove the seat and make a small tear in the carpet (I will show later) in order to access the sensor area. Again, take a look at the pictures and decide what is best for you.
The connector is very tough to get at an uncouple. A flathead works but you may not get enough leverage on it no matter how hard you try. Bear with me as I will show some pictures in a bit of when I cut through the rug so you can get a better idea of how it looks from the top.