I'm changing out the cap, rotor, plugs and wires on my 81 turbo and have a couple questions. In the first pic there are a couple of connectors, blue and green, on the drivers side that aren't connected to anything. Are they for some sort of diagnostics. And just above and to the right is a little push button activated switch. What is its function. The second pic shows a vacuum type switch that is mounted on the drivers side inner fender that has a hose connected to the one and nothing on the other. Is this correct?