Bank 1 Sensor 2

[jaemitch]

my 97 chevy suburban just recently started burning rich and runnin like poop it through codes PO141 which is an o2 sensor but which one is bank 1 sensor 2. min have the 2 cat exhaust. thanks a million

 

[Mike]

If I'm not mistaken thats drivers side after the cat. I'll double check, also the dealer will know.

 

[silverado_06]

If I'm not mistaken thats drivers side after the cat. I'll double check, also the dealer will know.

this is correct.

 

[jaemitch]

thanks folks ill let yall know is she comes back to life

 

[Hodges87]

I would buy an AC Delco O2 sensor from rockauto.com and use a discount code and save an additional 5%

 

[GMCzar]

Bank 1 refers to the side of the engine that has the #1 cylinder.
Bank 2 is the opposite side of the engine.