Chevy Cruze Code P0420

2013 chevy cruze lt 1.4 turbo i have code p0420. i’ve changed the bank P0171 cruze lean chevrolet Fix code p0171 chevrolet cruze chevy sonic system too lean

FIX CODE P0171 CHEVROLET CRUZE CHEVY SONIC SYSTEM TOO LEAN - YouTube

Chevy code image0 p0420 cruze

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2013 Chevy Cruze LT 1.4 Turbo I have code P0420. I’ve changed the Bank

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FIX CODE P0171 CHEVROLET CRUZE CHEVY SONIC SYSTEM TOO LEAN - YouTube