EXCESSIVE EGR flow will likely be one of the following:

Faulty EGR Valve - not closing fully
DPFE Sensor - Measuring incorrect amount of EGR Flow
EVR Solenoid - Applying constant or excessive vacuum to the EGR valve

This is not an issue with the throttle body ports (That's a P0401).

Steve

98 Contour SE Sport 2.5 Duratec ATX The wifey's car 89 Taurus SHO - 246K miles 94 SHO ATX - 190K 1997 F-150 5.4L ATX - The Workhorse 150K. ANY THREAD WITH "OMG" or "WTF" ETC IN THE TITLE WILL BE IGNORED!