P CODES (POWERTRAIN) P0400 - P0499

I Have A Code Po441 Evaporative Emission Control System Flow Faulty.I Check All Lines For Cracks Or Missing Found None. Do You Have Any...

I Have A 97 Thunderbird 4.6 V8 With 94,000 Mi. On It That Have Po420 Po430 Po171 An Po174 Code It Idles Good But On Accelertion Hard From 40...

Car First Started Missing, Not Backfiring, When I Stepped On Accelartor Harder It Would Almost Die, Make A Popping Noise, Bilge Black...

I Have A Po442 Small Leak In Evaporative Emission System. How Do I Check Cannester And Purge Valve? Or Do I Just Replace Both? If...

Check Engine Light Came On, Put On My Handheld Scanner And Received Code P0455. Going With The Easiest Hopeful Repair, I Purchased A New...

Hi I Have A 2002 Chrysler Town N Country The Gave Me Code P0442 N P0555 And If U Can Help Can U Plz Tell Me How To Fix The Promble Thank...

I Have A Leak Detection Pump That Is Connected To Engine Vacuum To Open The Switch From The Leak Detection Pump. Can An Engine Vacuum Leak...

Well I Got My Car Inspected Last Month At The Beginning, Figuring I'd Not Put It Off. It Failed Miserably, Like 6 Obdii Codes. I Got...

The Engine Is Misfiring And The Spark Plugs And Wires Have Been Change. I Also Checked To See If It Was The Catalytic Converter Blocked But...

P0430 Catalyst System Efficiency Below Threshold, Right Bank What Does Mead