Can You Identify These Redtop SR Harness Plugs?

[MarvynDT]

I've been inspired to clean up my SR harness, but there are a few plugs that I cannot identify on my redtop harness. Please help if you know...


Here are the 3 plugs at the end of the engine harness. According to Heavy Throttle the brown plug and the larger gray plug are easily explainable. But what happens to the smaller gray plug? Perhaps I overlooked it, but I don't see a similar plug on the main engine bay harness.


On the same lead going to the 3 plugs are some connectors that I cannot confirm in the FSM. What exactly are they? Do I need them?


On the harness that has the MAF and power steering connection is a cut heavy gauge black wire. What is it?


On the harness that has the wastegate solenoid and ignitor is a 3rd plug. According to the S14 SR FSM, this could possibly be the ABS sensor, but I'm not sure if this even exists on a redtop S13.