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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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         Message Closed w/Summary 
	   
	   
	   
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| 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 | 
                            
14 Replies Received
          14 Replies Received
          
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