Missing oil pressure switch?

[fixkick]

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Edit: ok there is pic. Sorry for picture quality. I had to chop it down..ill get some better pics later but in this toy can see the gold plug there and the wire i assumed wrongly about

Thank you so much..i feel like an idiot because that cluster is so much easier than what I was making it out to be. I read this site religiously but today I will read up the ones thst you posted that ive either missed or misunderstood. Thank you so much for ur patience with me and help yoyve provided.

Here is a picture of the where the oil pressure switch is located. (Lol please dont judge on the microgard oil filter lol. Only too late did I read ur section about actual filtering capacity of these. My.idea was..ive changed oil n filter every 1500 miles since i got it to just kind of clean it out a bit cuz it was rough when i got it..then Recycled the oil to my buddy. Putting a WIX on this next time.and reverting to every 3k) also excuse the greasy mess.. Cv axle busted and valve cover leaky gasket..and im still trying to get all of that cleaned up...

Anyways as you can see here with pic..the AC is totally removed and bypassed with smaller belt on P/S. Having no issues with it but you can also see below my beat up exhaust shield that there is just a gold plug there. And wire hanging. I will take and post some better glamour shots of it in a bit when im not so busy (im a male nurse believe it or not during this mess)

Truck is 1993 8v 2door suzuki sidekick with 3 speed automatic..still functioning auto hubs believe it or not 4x4 

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any filter fresh is better than none or old. or one that omg goes in to BYPASS mode.
my comments on filters is for modern times, and that some folk like to run SYNthetic oil for 20,000 miles, so for that a WIX is best. (it can last)
some filters are just glued up inside, and do not last that long. yours is ok.

the PO, seized, the last AC compressor.  this also wrecks many other parts full of debris,  like  that condensor coil.   a huge cost to fix right. (and last)
that is why they changed out the belt. (PO- previous owners)

the PO removed the old leaking oil pressure switch sender,  and plugged the old , the damage there is unknown.  (never a good thing seen here)
if Id have done that (never) id have smashed up the old sender, and brazed it closed (port) or TIG/MIG port over and blocked, so that the British treads are not wrecked in the block.
mind set: never wreck a block for fun. or folly.

I'd worry thermostat first.
after all if the STAT is old it can go worse fast, it can stick closed,OVERHEAT FAST ! and next a very expensive,  warped cylinder head as a door prize.
never ever ignore the STAT, it needs to be kept fresh , 7 years or less , say the top maker of them.

put a new 180f stat in the car. fresh and new, all stores sell this, (autostores ) or can get it fast, even at NAPA can.
is best.

cheers and good luck to you!!!!!!