Cincinnati Kid

i recently purchased a 928 and soon discovered the engine wiring harness was destroyed. i am in the process of making my own, but there are three sensors on the engine. i have no idea what they are.
two of them on either side of the thermostat housing, and one back on the right side of the engine. if someone could please identify which is which and if i have missed any on the upper end of the engine, i'd appreciate it.