02 sensor

Tiny
ADEEB747
  • MEMBER
  • 1999 GMC YUKON
  • V8
  • 4WD
  • AUTOMATIC
  • 128 MILES
Where is -O2 Sensor Heater Circuit Malfunction (Bank 2, Sensor 2)
Thursday, May 19th, 2011 AT 9:50 PM

2 Replies

Tiny
BCMULLEN95
  • MEMBER
  • 248 POSTS
Sensor 2 will be the Oxygen sensor after the Catatylitic converter. I am asuming you have the 5.7L engine if so this should help.
Sensor 1 bank 1 = left side before cat
sensor 1 bank 2 = right side before cat
sensor 2 bank 1 = left side after cat
sensor 2 bank 2 = right side after cat
Right side Passanger side, Left side is driver side.
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+4
Friday, May 20th, 2011 AT 3:01 AM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Right on!
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Thursday, August 18th, 2011 AT 3:07 PM

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