My CEL came on and when I ran the codes I got:
335 (O) EGR feedback signal is/was out of range
327 (O,R,M) EGR feedback signal is/was low
332 (R,M) EGR did not open/respond during test or if memory code, did not open intermittantly
I checked the EGR valve with a Vac pump and it held fine and all the vacuum lines are intact and connected. But when I connected the Vac pump to the EGR Solenoid Valve (key off/engine stopped) it passed vacuum through it, or in other words was "open". Is this normal? I would assume it would be "closed" until voltage was applied. Now here is the part where I may have messed up. I removed the EGR Solenoid Valve and connected a pair of jumper wires to a 12v source. Got a huge arc, so either the solenoid windings are shorted or I just fried it.
HELP !!
1995 Contour Zetec ATX