How to check the spark plugs & coils, how to remove?

Attached

Attached Thumbnails

     

The wires which I cannot reach according to the schematics are:-
no.65 Crankshaft Positon sender unit, camshaft position sender unit, intake
air temp sensor
no.74 intake aire temp sensor
One beside this which have no no. but look like a knock sensor?
The above is one cable harness.

Then two cables from:-
no.125 Ignition Coil
no.116 Oil Level indication
no. 89 Plug Conection Engine/Body ?
no.83 Plug Conection Engine/Body<--- I have disconnected this one?
no.101 Plug Conection Engine/Body<--- I have disconnected this one?
no.110 Plug Conection Engine/Body ?

Attached Thumbnails