Need help identifying random plugs (RX-7)

[schurchill39]

I was doing a little tinkering under the hood today and I noticed a few plugs that didnt have any connections, they are jsut kind there. Does any one have any clue what they are supposed to connect to?
Passenger side

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Drivers side

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[CryoCarnage]

Sometimes, those are factory options that are left out of your car because it wasn't upgraded enough ( i have like only 1 of those on mine, and its from the previous carphone which was removed) Rx-7 guys should be able to clear this up.

[Maxt]

On the Rhdside, Green 3 lead is Tps checking tap, yellow is fuel pump run jumper tap. driver side is bigger one diagnostic check/ecu trouble code output, smaller is initial set connector for locking down ecu while setting idle speed and mixture.

[schurchill39]

So they are all for diagnostics and i dont need to worry?

[rx7_turbo2]

Yup Well I mean at some point if you are going to maintain the vehicle yourself you'll need to know what they are and what they do, but other than that just leave them alone.