CHEVROLET IMPALA P CODES (POWERTRAIN) P0400 - P0499

I Have Spent Sometime Reserching Your Site (and Others) Trying To Solve The Problem. My Car Doesn't Accelerate/has No Power Especialy...

Engine Code P0455 Has Appeared In My Car. I Have Cleared The Code After Tightening The Gas Cap. About A Two Days Later, The Code Came Back...

Just Had The Catalytic Converter Replaced Yesterday, And After 30 Or So Miles The Check Engine Light Came Back On, My Obd Reader Gave Me...

Computer Problem 6 Cyl Front Wheel Drive Automatic 164169 Miles Vin #2g1wf52e549116832 Getting Trouble Code Po455/evap. Emission...

My 2007 Impala (3.9) Throws A Po455 Code. It Didn't Throw This Code Until I Added A Can Of Berryman's Fuel Injector Cleaner. I Reset The...

Hi, My Check Engine Light Has Been On For A While, I Just Had It Checked Recently. It Has An Evap Code, Something About A Major Vacuum...

2003 Chevy Impala 6 Cyl Automatic 90,000 Miles I Would Appreciate Any Help Or Advice. The Check Engine Light Just Came On In My Impala...

My Check Engine Light Came On On My 2003 Impala About 3-4 Months Ago. We Had It Scanned And Code P0401 Came Up. We Changed The Egr Valve...

I Followed Your Response On A Similar Problem And When I Start The Engine With A/c On The Fans Run. I Cleared The Code And It Has Returned....

Replaced Switch/purge Solenoid. Check Engine Light Remained. Do I Need To Clear The Code, Or Will The Code Clear Itself After Normal...