P CODES (POWERTRAIN) P0400 - P0499

Coming Home Today, The Check Engine Light Came On. Took To Auto Parts Store And Put Code Reader To It. Came Up Code P0420. What Does This...

How Do I Repair A Code From My Obd-2 /code 420 Catalyst System Efficiency Below Threshold ( Bank 1). Spark Plug, Sensor, Or Is It My Cat...

I Am Stumped, I Used A Scanner To Read The Code And Then Erased It Two Days Ago. I Figured It Would Come Back Since It Is Low Catalyst...

Light Just Came On And I Scanned It And This Code Came Up. Where Is This Piece Located.

Hi I Have This Code And I Was Told That I Need To Replace The Fuel Pressure Sensor. Should I Replace The Fuel Regulator As Well? Thanks

2001 Dodge Intrepid Se W/53260mi. I Changed The Gas Cap Two Months Ago And I'm Still Getting This Code. I Checked The Lines From The Purge...

Check Engine Lite Came It Was Anevap Code

Someone Said I Need To Replace The Catalytic Converter. Looking For Your Suggestions.

Where Is It Located At How Much Do They Cost Ballpark

I Recently Posted A Questioned Concerning Code # Po446, It Should Have Read P0443. I Received A Reply From A "rasmatas" I Believe...