usually not too bad. THere are a couple of choices when replacing. You can get a universal fit or a OEM. Either way, I would invest in a O2 sensor socket, but a wrench works fine.|||Warm the motor to normal running temp spray some pb buster at the threads and remove the sensor. as the previous man said I would purchase the socket if possible but a wrench should work. one quick question for you, did they inform you it was bad at a smog shop? anyway contact me at www.mycarandineedhelp.com its a free service I do |||Easy task. Unplug sensor, unscrew old one, install new one, plug it in.
It really isn%26#039;t much worse than that! If you don%26#039;t get an OEM replacement, you may have some simple wiring involved (instructions included) and if you can read then you can figure it out.
The hardest thing would be dealing with a froze sensor that you cannot get out of the pipe. Spray some pentrating oil on the sensor a few minutes before you plan on removing them to help.|||Odds are that you don%26#039;t need to.
But, I assume you got a trouble code for slow switching sensors and not a rich/lean code.
