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	 2003 Toyota Tundra Limited 4.7L MIL Lamp on 
		
		Almost every time I see these codes on a vehicle it ends up needing new cats. A few times I've seen a TSB indicating an ECM update that changes the effeciency threshold. This truck has no such TSB's. There are no codes to indicate a fault with the O2 sensors t... 
                        
                            FIX posted 4/20/2007
                             
                 
                            
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         Message Closed w/FIX 
	   
	   
	   
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| VIN | 5TBBT48163 | 
| Engine | 4.7 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | FI | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Not Applicable | 
| Misc. | Trd | 
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) | 
| P0430 | Catalyst Efficiency Below Threshold (Bank 2) | 
Message Closed w/FIX
            
            
 Vehicle Data
                2003 Toyota Tundra Limited
| VIN | 5TBBT48163 | 
| Engine | 4.7 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | FI | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Not Applicable | 
| Misc. | Trd | 
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) | 
| P0430 | Catalyst Efficiency Below Threshold (Bank 2) | 
                            
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