Ford P Codes (Powertrain) P0400 - P0499 P0402

My Sevice Light Is On, And The Codes That It Brings Up Are P0171,po174,po402, Iam Not For Sure What These Are

2002 Ford Crown Victoria Pi. Code P0402. Have Replaced Egr Valve, Dpfe And Evp. Checked Dpfe Hoses And Blew A Bit Of Air Through The Lines...

What Is The Normal Repair For This Malfunction?

The Check Engine Light Came On And I Pulled The Code And It Said P0402 Egr Flow Excessive. Any Idea What That Could Be?

I Clean The Egr Valve For My Ford Expedition 3 Times And I Still Get The Code P0402 Intermittently. What Can I Do To Solve The Problem?...

When The Car Is First Started After Sitting Overnight, The Idle Is Rough With A "chug" To The Engine. If I Do Not Wait Until The Idle...

What Would Cause Fault Code# P0402

My Check Engine Light Has Been On And I Got The Diganistics And I Got The Folowing Codes P0402(exhaust Gas Recirculation Flow (egr)...

Engine Performance Problem 1996 Ford Crown Victoria V8 Two Wheel Drive Automatic The Trouble Code P0402 Egr Flow Excessive Came Up On...

My Check Engine Light Was On And Off Periodically After I Bought The Car In 2003 (mostly On). I Was Getting Code P0402 [exhaust Gas...