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Can header leak cause code 91?

  • Thread starter Thread starter Tyler16
  • Start date Start date Aug 13, 2009
T

Tyler16

New Member
Jul 29, 2009
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Aug 13, 2009
#1
  • Aug 13, 2009
  • #1
I bought the car with a header leak on the drivers side. its missing a bolt. Could this cause my koer code 91-(o2 sensor lean on left side)?
 
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