My 93 300d is getting about 23 to 24 miles to the gallon. I was expecting to get around 30. I have had the car for about 3 months now. I have replaced all filters and fluids in the car. Replumbed the vacume lines - many were missing or incorrectly connected. The car is sluggish until about 20 mph when it takes off.
Tire pressures are correct.

What are my next steps in getting this car to be more fuel efficient?

Thanks
Mark

Also does anyone have some good pics of the engine compartment of a 93 300D so I can see how all the vacume lines are supposed to be physically routed?