P CODES (POWERTRAIN) P0400 - P0499 P0402

I Have Ls 3.9 The P0402 Code Keeps Haunting Me. I Have Replaced The Left Bank 02 Sensors, Egr Valve And The Egr Pressure Sensor. The Car...

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

What Is The Normal Repair For This Malfunction?

97 F150 Has Code 402. I Replaced The Valve And Checked For Plugged Lines And The Code Comes Back. The Vehicle Runs Fine.

Scan Reads P0402 Egr Valve Exessive Fuel Flow 2nd Code # P1404 Manfacurer Contrl Auxiliary Emission Controls Plus My Tod Is Flashing Check...

How To Repair Code P0401 - P0402 The Mil Is On I Oly Scan Diagnostc Trouble Codes P0401 - P0402

1996 Mercury Sable 200,000 Ohv 3.0 U The Car Randomly Jerks And I Got Codes P0340, P0131, P0401, P0402, P1130, P1131. P0401 = Egr Flow...

What Would Cause Fault Code# P0402

Codes P0402 And P0422? Emissions Codes?