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1997 Chevrolet Blazer 4.3L Excessive Emissions
Posted to GM Driveability on 10/6/2008 16 Replies

changed catalytic converter because it had fallen apart internally, also changed fuel injectors due to excessive negative fuel trims of -13.0% on both banks, after injectors and cat were replaced fuel trims were -3.0% both banks, let customer take vehicle. veh...

16 Replies Received (View Replies)

  Related Documents & Media  1997 Chevrolet Blazer

 
Message Closed w/FIX

car Vehicle Data

1997 Chevrolet Blazer

VIN 1GNCT18WOV
Engine4.3 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions
OccursAlways
Misc.2 Door

Trouble Codes

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

car Vehicle Data

1997 Chevrolet Blazer

VIN 1GNCT18WOV
Engine4.3 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions
OccursAlways
Misc.2 Door

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)