When you are thinning your harnesses you will have black and black/white wires in various places. Their locations differ with year models and trim levels. These are ground wires for computers and controls and everything. Every one of them will need to be grounded to the frame or engine/transmission.
At the rear of the goblin, you will need to ground the fuel pump with a leftover ground lug that you thinned from the harness. If your donor had ABS brakes you can use the ground lug from it. If not just use any other ground lug or you can make your own.
If your donor is an SS it will have a coolant tank level sensor that will need to be grounded.
Some trims have other black or black/white wires near the fuse box. They all need to be grounded.
The white square headlight connecter that goes on the driver's side of the fuse box has a ground lug with one large wire that goes to the white square connector and several others that went to the headlights, fog lights, and windshield washer pump. You need to extend three of the loose small ground wires out of the back of the goblin. Two are to be used for grounding your left and right tail lights and the third is to be used for the license plate lamp.
Upfront there will be roughly 16 to 20 wires that need to be grounded.
EVERY BLACK OR BLACK/WHITE WIRE needs to be grounded to the frame or engine/transmission.
