Can an exhaust leak cause the computer to throw an O2 sensor code?

[GToddyT5]

I had a bad O2 sensor code, so I replaced the sensor. Then I cleared the codes and it came back. Could I have an exhaust leak at my midpipe?

 

[BCB00GT]

I would think a leak at the header/midpipe connection could, but I would think that would be the front O2 and the car would be compensating a lot. Was this the front or rear O2 sensor?

 

[GToddyT5]

Front driver

 

[BCB00GT]

Yeah, a leak at the header midpipe should definitely throw the sensor out of range.

 

[joshheat25]

yes that will cause a code to be thrown.

 

[screamin gt]

sure will at the front, you'll get a lean bank code