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2003 GMC Sierra 1500 SLE 4.3L MIL Lamp on
Posted to GM Driveability on 8/6/2007 12 Replies

Recently we replace the intake gasket, did an fuel inj service, the Ck Engine has been coming on with a code P0430, but the truck runs good etc, the customer is concerned about the light. Bank 1, oxygen sensor 2 seems to be slow to responding, but the code ref...

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  Related Documents & Media  2003 GMC Sierra 1500 SLE

 
Message Closed w/FIX

car Vehicle Data

2003 GMC Sierra 1500 SLE

VIN 1GTEC14X93
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / EFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

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

car Vehicle Data

2003 GMC Sierra 1500 SLE

VIN 1GTEC14X93
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / EFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0430Catalyst Efficiency Below Threshold (Bank 2)