Began working my way through the Engine Management System (EMS) main sensor harness. This harness is a 37-pin d-sub connector with nearly all the wires unique (5 of the wires are grounds and 2 wires are +5 and +12 volt power). Today I decided I needed to sort through the wires and determine which ones form a full set (like manifold pressure sensor) and then label all the lines so I don't need to refer to the 2-page chart describing the wires' colors and purposes.
Today I made it through voltmeter, tachometer, manifold pressure, and oil pressure. Only 7 more to go!
The EMS input cable: 37 individual wires supporting most of the engine performance sensors.
The various wires. Sorting and labeling has begun
The "map" of the wires (33 of 37), their colors, and what they connect to.