Chevrolet Impala P Codes (Powertrain) P0400 - P0499

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

So, I Have Been Having Issues With A P0449 Code. At The Canister I Have Disconnected Wiring Harness. Testing The White Wire With...

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

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

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...

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....

I Have Recently Got The Codes P0445 And P0449 Have Come Up. We Have Replaced The Evap Canister To Cover For The P0449 About 3 Weeks Ago...

It Started Out With A Bad Gas Cap. Went To Auto Zone And They Sold Me The Wrong Cap That Wasnt Pressurized. I Drove For 3 Weeks Like That....

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...

This Code Comes Up When Checked Evaporative Valve Seliniod