P CODES (POWERTRAIN) P0400 - P0499 P0401 Questions

Trouble Code Says Egr Flow Insfficient Can Someone Tell Me How To Fix It Already Took Egr Valve Off And Cleaned It. Dont Know Where To Go...

Check Engine Lite On I Get Code P01401

I Have Replaced The Egr Valve And Reset The Computer. With A Scan Tool. Code Stayes Off For 76 Miles. On The Freeway The Minute I Got Off...

Computer Problem 2001 Mazda B3000 6 Cyl Two Wheel Drive Automatic I Had A Diagnostic Test Done And It Came Up With That Code. What Do...

I Installed A New Dpfe Sensor And Egr Pressure Feedback Hoses. The Code Seems To Have Cleared. How Long Or How Far Do I Have To Drive Before...

Had Error Code P 0401 Then We Replaced Egr Valve Had Code Cleared Then Could Days Later Check Engine Light Came Back On And Its P 0401 Again...

I Get Intermittent P401 On My Grand Caravan (flex Fuel). It Comes On Then In A Day Or Two Disappears. Other Symptoms Are Erratic Idling...

I Bought This Van On Facebook And This Specific Code Has Been Giving Me A Headache. So Far I've Change The Egr Valve, Dpfe Sensor, And...

Vin 1fmdu32p2vua38455 Can Not Find Dpfe That Sends Code To Computer. All Suggestions Point To Replace Will Fix Problem. Does It Have One Or...

How Do I Replace The Egr Valve Located At The Back Of The Engine Near The Firewall? Does The Intake Maniflod Need To Be Pulled?? The Manual...