P CODES (POWERTRAIN) P0400 - P0499

What To Do Next After Replacing Erg Valve? The Check Engine Is Still Lit. Do The Computer Need To Be Reset? Or Do I Need To Do Something...

Have A 2007 Saturn Vue, 3.5 L 6 Cylinder Awd Which Is Sick And Showing Code Po499 What Does This Mean? The Code Is Not In Our Book. Won't...

Got My Oil Change Done This Sunday At Local Chevron Station For My 2001 Nissan Altima (i Put Valvoline Oil). They Told Me That Fuel Injector...

I Have Had An Evap Canister Replaced Under The Hood On My Car, But The Check Engine Light Still Comes On. I Was Told The Fuel Tank Has One...

I Have A Chrysler 300 Touring And My Engine Light Is Staying On With The Code P0406 Egr Position Sensor Circuit High. I Have Had A Recent...

Trouble Code P0420-catalyst System: Efficiency Below Threshold (bank 1).

What Oxygen Sensor Is Having The Problem

I Have A 2000 Montero Sport. Got Code Po421 And Have Sequentially Replaced All 4 O2 Sensors In Addition To Having A Complete Tuneup...

Catalyst Below Threshold Bank 1 Is The Only Fix For This To Replace The Converter And If So How Do You Reset The Code After Replacement Of...

Computer Problem 2005 Dodge Caravan Front Wheel Drive Automatic 69000 Miles My Check Engine Light Has Been Going On And Off For A...