[boschmann]

If the car was sold in the US it should have an EGR valve, an EGR vacuum control (regulator) valve and an EGR temp sensor (screwed into the base of the EGR valve unit). Someone probably removed it & plugged the holes. I'm suprised it's not setting codes for it. The vacuum regulator valve should be mounted on the back of the intake manifold & have red/blue & green/grey wires. There were two vacuum hoses that went to the valve, one from in front of the throttle plate & another off the plenum behind the throttle plate.