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2000 Chevrolet Suburban 1500 LT 5.3L Cuts out, Misfire, MIL Lamp on
Posted to GM Driveability on 9/29/2005 14 Replies

The truck came in 1 month ago with after failing the emissions test due to code: P0420 - low cat efficiency bank 1 - after testing and replacing the catalytic converter and both oxygen sensors (front & rear) on bank 1 the code P0420 low cat efficiency returns ...

14 Replies Received (View Replies)

  Related Documents & Media  2000 Chevrolet Suburban 1500 LT

 
Message Closed w/FIX

car Vehicle Data

2000 Chevrolet Suburban 1500 LT

VIN 3GNFK16T6Y
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / mutiport
EmissionsOBD-II Compliant
SymptomsCuts Out, Misfire, MIL Lamp On

Trouble Codes

P0300Multiple Misfire Detected
P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed w/FIX

car Vehicle Data

2000 Chevrolet Suburban 1500 LT

VIN 3GNFK16T6Y
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / mutiport
EmissionsOBD-II Compliant
SymptomsCuts Out, Misfire, MIL Lamp On

Trouble Codes

P0300Multiple Misfire Detected
P0420Catalyst Efficiency Below Threshold (Bank 1)