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2008 Chevrolet Suburban 1500 LTZ 5.3L Excessive Emissions, MIL Lamp on
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...
Summary posted 7/2/2021
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Related Documents & Media | VIN | 3GNFK16338 |
| Engine | 5.3 L / 8 cyl / FLEX |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / Electronic returnless |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, MIL Lamp On |
| Occurs | On Decel, Idle |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
| P0430 | Catalyst Efficiency Below Threshold (Bank 2) |
| P0573 | Brake Switch 1 Circuit High |
| P1133 | Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching |
| P1153 | Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Switching |
Message Closed w/Summary
Vehicle Data
2008 Chevrolet Suburban 1500 LTZ
| VIN | 3GNFK16338 |
| Engine | 5.3 L / 8 cyl / FLEX |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / Electronic returnless |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, MIL Lamp On |
| Occurs | On Decel, Idle |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
| P0430 | Catalyst Efficiency Below Threshold (Bank 2) |
| P0573 | Brake Switch 1 Circuit High |
| P1133 | Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching |
| P1153 | Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Switching |
Video