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

  • Thread starter Thread starter GToddyT5
  • Start date Start date Apr 14, 2008

GToddyT5

Founding Member
Jan 14, 2002
553
0
16
Hamilton, NJ
Apr 14, 2008
#1
  • Apr 14, 2008
  • #1
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

Founding Member
Mar 5, 2002
420
0
17
Apr 14, 2008
#2
  • Apr 14, 2008
  • #2
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

Founding Member
Jan 14, 2002
553
0
16
Hamilton, NJ
Apr 14, 2008
#3
  • Apr 14, 2008
  • #3
Front driver
 

BCB00GT

Founding Member
Mar 5, 2002
420
0
17
Apr 14, 2008
#4
  • Apr 14, 2008
  • #4
Yeah, a leak at the header midpipe should definitely throw the sensor out of range.
 

joshheat25

Member
Nov 8, 2004
871
0
16
Delaware
Apr 14, 2008
#5
  • Apr 14, 2008
  • #5
yes that will cause a code to be thrown.
 

screamin gt

5 Year Member
Apr 9, 2007
393
6
28
central CT
Apr 15, 2008
#6
  • Apr 15, 2008
  • #6
sure will at the front, you'll get a lean bank code
 
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