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2008 Chevrolet Suburban 1500 LTZ 5.3L Excessive Emissions, MIL Lamp on
Posted to GM Driveability on 6/12/2021 14 Replies

Hey IATN community, I have a head scratcher here, or maybe I'm just making a mountain out of a molehill. So, the vehicle came to my shop after multiple repairs elsewhere that did not fix issue. Issue was CEL, intermittent misfire, and intermittent low powe...

14 Replies Received (View Replies)

  Related Documents & Media  2008 Chevrolet Suburban 1500 LTZ

 
Message Closed w/Summary

car Vehicle Data

2008 Chevrolet Suburban 1500 LTZ

VIN 3GNFK16338
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / Electronic returnless
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, MIL Lamp On
OccursOn Decel, Idle

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
P0430Catalyst Efficiency Below Threshold (Bank 2)
P0573Brake Switch 1 Circuit High
P1133Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching
P1153Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Switching
Message Closed w/Summary

car Vehicle Data

2008 Chevrolet Suburban 1500 LTZ

VIN 3GNFK16338
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / Electronic returnless
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, MIL Lamp On
OccursOn Decel, Idle

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
P0430Catalyst Efficiency Below Threshold (Bank 2)
P0573Brake Switch 1 Circuit High
P1133Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching
P1153Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Switching