CHEVROLET P CODES (POWERTRAIN) P0400 - P0499

Bad Gas Mileage, Shuts Off When Idling In Traffic.

My Scanner Shows A P0411 Code “secondary Air Injector Incorrect Flow” Any Advice On What To Change/ Look For To Rectify This. Thanks

Hello, My Car Listed Above Has A Rough Idle And Exhaust Smells With Smoke Out Tail Pipe, Block Test Done No Blown Head Gasket. Can Anyone...

How To Find Out What It Is I Am Needing To Repair?

I Have A Po420 Code On My Car And I Don't Know If It’s My O2 Sensor Or My Catalytic Converter Is Bad Or What. I Don’t Have A Bad...

I Just Had My Code Checked And It Said That It Was A P0420 Code And It Had Another P0420 Code With Some Symbols Beside It. How Do I Know If...

So My Truck Threw A Code P0420. I Replaced The Oxygen Sensor Before The Catalytic Converter, Cleared The Codes And The Same Code Popped Up...

Hi, I Have These Codes In My Car: P2094 B Camshaft Position Actuator Control Circuit Low Bank 2 P0442 Evaporative Emission System...

I Replaced The Fuel Pump And Shortly After I Have Been Having Issues With The Dtc Code P0452. I Have Replaced The Fuel Pressure Sensor And...

Replaced O2 Sensor. Would Like To Let Roy Know We Still Have Not Found The Problem To Flunk Emissions. Found A Bad Spark Plug, Bought New...