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Bank 1 sensor 2 is located driver side pre cat.

There are 3 sensors located on this truck, Bank 1 sensor 1 is the passenger side, Bank 1 sensor 2 is driver side pre cat, bank 2 sensor 1 is after cat.

The 2 sensors pre cat are the ones you should worry about, these are the sensors that will get the most violent of ware, they are also directly related to fuel consumption and in this vehicle can cause serious power loss.

The sensor after the cat is basically there to tell you when your cat needs to be changed and doesn't effect fuel consumption.

My 2009 F350 super duty had a bank 1 sensor 2 code come up, I didn't have the time to change it and the fuel it used was mind blowing. I went from 135kms left till empty to 93kms till empty in the period on 20 mins...idling. That's when I had it changed.

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12y ago

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