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- - 02 Sensors (https://chevroletforum.com/forum/new-member-welcome-area-4/02-sensors-82448/)

Geri Castelan

March 30th, 2017 2:08 PM

02 Sensors

I need to replace upstream 02 sensor, which will be bank 2, sensor 1. But my question is do I have to change bank 1, sensor 1 as well or it doesnt matter?

tech2

March 30th, 2017 8:10 PM

this is the welcome section. the short answer is you only need to replace a sensor if it is faulty. They do not need to be replaced in pairs.

What have you done to determine b2s1 02 needs replacement?

Geri Castelan

March 31st, 2017 6:59 AM

Geri

Thank you for the welcome. I have a 2007 Chevy Silverado classic 4.8 v8 vortec engine that seeks.for some help.

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