p0404 and p0420 - Chevrolet Forum - Chevy Enthusiasts Forums

Chevy P0420

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p0404 and p0420 - Chevrolet Forum - Chevy Enthusiasts Forums

I have a 97 chevy c10 5.0 liter. p0420 keeps coming on any answers?

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WHAT CAUSES CODE P0420 ENGINE LIGHT CHEVROLET, CHEVY, GMC, BUICK
WHAT CAUSES CODE P0420 ENGINE LIGHT CHEVROLET, CHEVY, GMC, BUICK

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P0017 Chevy Cruze
P0017 Chevy Cruze

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p0404 and p0420 - Chevrolet Forum - Chevy Enthusiasts Forums
p0404 and p0420 - Chevrolet Forum - Chevy Enthusiasts Forums

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chevy 2.4L ecotec P0171 fix. - YouTube
chevy 2.4L ecotec P0171 fix. - YouTube

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Chevy Engine Code P0420
Chevy Engine Code P0420

p0404 and p0420 - Chevrolet Forum - Chevy Enthusiasts Forums
p0404 and p0420 - Chevrolet Forum - Chevy Enthusiasts Forums

P0430 Chevy Tahoe
P0430 Chevy Tahoe

P0420 Code Chevy Tahoe
P0420 Code Chevy Tahoe

P0420 Chevy Equinox Meaning, Causes, Symptoms (& How To Fix)
P0420 Chevy Equinox Meaning, Causes, Symptoms (& How To Fix)

P0420 Chevy Equinox Meaning, Causes, Symptoms (& How To Fix)
P0420 Chevy Equinox Meaning, Causes, Symptoms (& How To Fix)

P0171 – Fuel System Too Lean Bank 1 (GM) – TroubleCodes.net
P0171 – Fuel System Too Lean Bank 1 (GM) – TroubleCodes.net

P0171 Code Honda Civic
P0171 Code Honda Civic