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2008 Cadillac Escalade ESV 6.2L MIL Lamp on
Posted to GM Driveability on 3/28/2022 10 Replies

I'm having trouble with this one. Vehicle came for check engine light, no drive-ability issues. Codes stored, P0420 - Cat efficiency B1, P0442 - EVAP small leak, P2271 - HO2S B1S2 stuck rich, P0138 - HO2S B1S2 signal circuit high voltage, P0506 - Idle spee...

10 Replies Received (View Replies)

  Related Documents & Media  2008 Cadillac Escalade ESV

 
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car Vehicle Data

2008 Cadillac Escalade ESV

VIN 1GYFK66808
Engine6.2 L / 8 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / MFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
P1133Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching
Message Closed

car Vehicle Data

2008 Cadillac Escalade ESV

VIN 1GYFK66808
Engine6.2 L / 8 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / MFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
P1133Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching