P CODES (POWERTRAIN) P0400 - P0499 P0401 Questions

Any Ideas What's Wrong If I Am Getting A P0401 Code (egr Recirculation Flow Insufficient) But There Is No Change In Engine Performance, No...

Have A Stumble At A Steady Speed Like Twenty Five To Thirty Mph. I Already Changed Egr Valve And Pressure Feedback Sensor And Hoses.

My Beetle Is A Tdi, Not Sure If That Matters. I Bought This Car Used. When I First Bought It, The Test Drive Went Good Runs Great. I Drove...

Have P0401 Code Egr. I Have Changed The Egr Valve, Egr Solenoid And Sensor. Still Have The Code.

I Have A 2002 Mustang, It Passed Smog Last April...i.m Selling The Car And Need To Smog...i Took It In And Failed Smog Code P0401...have...

Engine Performance Problem 1998 Ford Expedition V8 Two Wheel Drive Automatic If The Vac. Line That Runs From The Egr Tube To The High...

P0401 Egr Insufficient Flow I Am Getting The Above Code On My Car. I Know What Needs To Be Done, And Would Prefer To Do It Myself, But I...

My 01 Caravan (3.3l 6 Cyl) Had Error Codes P0442 And 0455. Smoke Test Showed Fuel Filler Neck To Be Leaking. I Had That Replaced And Now I...

I Have A 1998 Dodge Neon Sohc P0401 And Wanted To Know How Likely It Is That It Is The Egr Valve

On The V6 Engine In My 1998 Avalon I Recieved Error Code Po401 Several Months Ago, Based On Service Manual Repair Procedures, I Evauated...