CHEVROLET P CODES (POWERTRAIN) P0400 - P0499

I Have A Live Data Freeze When Code Occurred.

I’ve Lost Access From A Friend's Mitchell Online Repair. I Could Use Some Help With Troubleshooting To This Fuel Evap Dtc. What’s...

I Took My Son's Car To O'riellys For A Diagnostic Because The Check Engine Came On And One Of The Codes That Came Up Was P0420. Is...

Car Is Giving Me Code P0461, But A Mechanic Said It Could Be My Alternator.

I Have A P0430 Code Pop Up Says Bank 2 Only Would This Be The Sensor Right After The Catalytic Converter?

Hello, I Have An Issue With The Egr Valve On A 2001 3.8l Chevy Impala. I Get The Dtc P0401code, Insufficient Flow. I Replaced The Egr...

I Have A 2002 With A P0420 Cat Code. The Factory Cat Was Replaced A Couple Of Years Ago After Becoming Clogged, And Had No Issues To Almost...

Car Passed New Jersey Dmv Inspection Post Repairs To Mass Airflow Issues With Emissions. Three Weeks Later Engine Light Comes On Again And...

Hello Again, Sorry To Keep Bothering You Guys But, On The Purge Vac Diagnostic Switch There Is Another Vac Fitting On The Left Side Of The...

Code P0449 Came On. I Was Told To Replace The Solenoid Vent Canister. I Did, Reset The Code And It Popped Right Back Up. Tried Resetting It...