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2003 Toyota Tundra Limited 4.7L MIL Lamp on
Posted to Asian Driveability on 3/8/2007 10 Replies

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...

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  Related Documents & Media  2003 Toyota Tundra Limited

 
Message Closed w/FIX

car Vehicle Data

2003 Toyota Tundra Limited

VIN 5TBBT48163
Engine4.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursNot Applicable
Misc.Trd

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
P0430Catalyst Efficiency Below Threshold (Bank 2)
Message Closed w/FIX

car Vehicle Data

2003 Toyota Tundra Limited

VIN 5TBBT48163
Engine4.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursNot Applicable
Misc.Trd

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
P0430Catalyst Efficiency Below Threshold (Bank 2)