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CHEVY ENGINE DIAGNOSTIC CODES
1998 Chevrolet Silverado
March, 8, 2008 AT 7:54 PM
Engine Performance problem
1998 Chevy Silverado V8 Two Wheel Drive Automatic 177000 miles
I HAVE 2 CODES FOR MY TRUCK. THEY ARE:
P0420 AND P0430
Catalyst System Efficiency Below Threshold (Bank 1)
Catalyst System Efficiency Below Threshold (Bank2)
Can you tell me what needs to be done to correct these codes? I had a new Catalytic Converter installed 1 year ago. Thanks for your help.
FOUND 16214 RELATED QUESTIONS
Why Is My 's Engine Bogging Down At Mid
Lack Of Power
March, 9, 2008 AT 10:10 AM
Those codes are for bad cat's.
Firrst thign to check is to see if the sensors are good, if they are bad replace them. Also you may have a exhaust leak causing those codes to appear.
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