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2012 GMC Yukon XL 1500 Denali 6.2L MIL Lamp on
Posted to GM Driveability on 4/12/2021 4 Replies

Six months ago vehicle had codes p0138 and p013E for B1S2. Now 6000 miles later after replacing B1S2 it has set P013A and P2271 for the same sensor. Don't see a significant difference between the post cat sensors. There is some difference between the preca...

4 Replies Received (View Replies)

  Related Documents & Media  2012 GMC Yukon XL 1500 Denali

 
Message Closed w/FIX

car Vehicle Data

2012 GMC Yukon XL 1500 Denali

VIN 1GKS2MEF3C
Engine6.2 L / 8 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P013AHeated Oxygen Sensor (Bank 1 Sensor 2) Slow Response - Rich To Lean
P2271Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Rich
Message Closed w/FIX

car Vehicle Data

2012 GMC Yukon XL 1500 Denali

VIN 1GKS2MEF3C
Engine6.2 L / 8 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P013AHeated Oxygen Sensor (Bank 1 Sensor 2) Slow Response - Rich To Lean
P2271Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Rich