I have an 1990 300e with a 3.0 I recently installed new iac hoses and now the car runs awful. i removed the fuel distributor and plunger housing and cleaned it up still no change. so i had it smoke tested and the only place that they found smoke was the plunger plate and from under it which looks like a vacuum line would run. but nothing is there. just a rubber nub. Does anyone know where this line would go? i have a 89 300te but the line runs to the head into a little valve that the 90 doesnt have. any ideas would be greatly appreciated.