P CODES (POWERTRAIN) P0400 - P0499

Codes P2196 And P2198 And P0401 And P0300 (all Intermittently). I've Cleaned The Carbon Out Of The Egr Valve. I've Checked Egr...

2001 Dodge Intrepid 6 Cyl Front Wheel Drive Automatic I Keep Getting A Code Of P0401 Replaced The Egr Vavle But Code Keeps Coming Back

Ihave Replaced The Egr Valve And Continue To Get A Code P0401

I Am Getting P0420 On My Vehicle Listed Above Base Model With 154,000 Km (95,691 Miles). Replaced Spark Plugs And O2 Censor. Used Fuel...

I Have A 2003 Chevy Impala With A 3.8 V^. Back A Couple Of Months Ago My Check Engine Light Came On And There Was A Code Of Po420 So I Went...

Hello I Have A Mercury Mystique With 144,000 Miles. I Purchased It Used In June Of 2009 So I Don't Know What Work Has Been Done On It(if Any...

I Found The Ground Switching Wire At The Plug Right By The Vent Solenoid Was Broken, I Made A Solder Repair, Tested The Plug And Now Have...

A Couple Of Months Ago, My Car Started Shaking, With A P2191 Code. I Took It To A Shop, They Told Me The Fuel Injectors Have Carbon Build...

Hi, On Dash A Yellow Indicator: Motor Management. Filler Cap Inspection, Nothing Wrong, No Smells Near Any 'position' Of The...

P0420 - Catalyst Efficiency Below Threshold Bank 1 Message Dor Check Engine Light. Repairs Already Completed Catalytic Converter(s)...