[NoDOHC]

The aux ports only activate if you have a functional air pump. If you do, the ACV (air control valve) also has to work. The solenoids for the 6PI and VDI can be tested, as can the actuators. Don't forget that you have to be driving the car to get the 6PI or VDI to activate - sitting in the driveway is not enough. A lot of people use grease or petroleum jelly to determine if the 6pi is operating.

The oil metering injectors should be easily cleaned by a spray can and pipe cleaner.

The OMP injects oil very slowly, so it is possible that the oil has not reached the injector yet. You also should have the vacuum lines connected correctly on the tops of the injectors.

You can ground the exhaust manifold anywhere on the manifold. I don't know if the heat shield is a good spot (My cars have all 'lost' their heat shields) but you could certainly use the manifold to downpipe connection bolts to put a ground wire under.