2002 Chevy Blazer oxygen sensors

2002 CHEVROLET BLAZER
50,000 MILES • 6 CYL • 4WD • AUTOMATIC
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LIDECU
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  • 1 POST
T he check "engine soon light "is on . I have a 2002 Chevy Blazer, and the diagnostic test showed it was oxygen sensor 2 in bank 1. I was told bank 1 is the drivers side. But i have only 1 sensor before the converter on the drivers side or bank 1.there is 1 sensor on the passenger side (bank 2) before the converter and 1 sensor onthe passenger side after the converter (bank 2). please tell me which one is sensor 2 in bank 1 or am i missing one somewhere.THANKYOU
Feb 15, 2009 at 5:33 PM
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RASMATAZ
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B1S2 is after the catalytic converter
Feb 15, 2009 at 6:01 PM
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BLUELIGHTNIN6
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Bank 1 is the side with # 1 spark plug (driver's side), on the same side sensor 1 is the sensor before cat converter and sensor 2 would be after the converter.

You sure you didn't mix the numbers up or overlook the sensor?
Feb 15, 2009 at 6:02 PM
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