hi. i have a focus 1.8 (2007) with a duratec engine. a P0403 fault is being generated which is as i understand it an egr circuit fault, an open/short on the egr/wiring/pcm. does anyone know what the 6 connections on the egr/wiring loom relate to? 3 coil stepper motor? pinouts or wiring drawing would be immensely helpful. thx.