which electrical connector goes where?

the connectors usually are "keyed" where only the correct one will fit on there. One end will be squared, etc - look more closely into that. I believe the coolant temp sensor is actually in the lower intake kinda right under the upper. I'm not real sure what the connector you're mentioning is.

There are two connectors, one is for the ECT and the other is for the canister purge solenoid valve. They aren't interchangeable.

Charcoal canister plumbing - one 3/8" tube from the bottom of the upper manifold to the rubber hose. Rubber hose connects to one side of the canister solenoid valve. Other side of the solenoid valve connects to one side of the canister. The other side of the canister connects to a rubber hose that connects to a line that goes all the way back to the gas tank. There is an electrical connector coming from the passenger side injector harness near #1 injector that plugs into the canister solenoid valve. It's purpose is to vent the gas tank. The solenoid valve opens at cruse to provide some extra fuel.

It does not weigh but a pound or so and helps richen up the cruse mixture. It draws no HP & keeps the car from smelling like gasoline in a closed garage. So with all these good things and no bad ones, why not hook it up & use it?

I'm trying to get mine hooked up and I'm missing the wiring harness that goes up to the plug by the injectors...any ideas where i can get it

Junkyard I'm thinking