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02 Sensors

   
Old Mar 30, 2017 | 2:08 PM
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Geri Castelan's Avatar
Geri Castelan
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Default 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?
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Old Mar 30, 2017 | 8:10 PM
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tech2
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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?
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Old Mar 31, 2017 | 6:59 AM
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Geri Castelan
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Default 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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