bad 02 sensor

[twitch49k]

my check engine light turned on so i scanned it and my scanner read a bad 02 sensor. it said 02 sensor bank1 sensor2. does anyone know what bank1 sensor2 means? any help is appreciated. thanks

 

[cruisintalonawd]

that means your first O2

 

[Boost92awd]

that means your first O2

Its the one after the converter.

 

[the_mork]

Its the one after the converter.

Seconded.

Bank 1 refers to a side of the motor. Since we have inline 4s we only have one bank, if you had a V style engine it would specify which side of the motor you should be paying attention to.

 

[BoredOutaMyMind]

Yep I'm pretty sure its the 2nd o2 sensor located at the cat, downstream. It doesn't really do anything except make sure your cat is workin alright and i believe there is a way to solder a resistor to the wires to trick the ECU into thinking that its working properly.

This o2 sensor doesnt affect your A/F ratios, mpg etc, and I ran my car without it for 2 years with no problems. But if you feel the need to spend $100+ go for it

 

[twitch49k]

thanks for the 411. i wasnt even aware of a second 02 sensor down by the cat. will definitely get it fixed cause the check engine light bothers me