Wiring Routing Question and Water Temp / Oil Pressure?
 

My oil pressure gauge was pegged before and never moved. The clip was hooked up to the oil pressure sensor under the oil filter. I removed the clip and measured voltage from the clip to a ground. The voltage ranged from about 12.0V (idle) to 14V (revved up). Is this normal? Provided this is normal, I assume my oil pressure sensor is bad. My gauge was pegged with the clip on or off.

I also tried hooking up the water temp sensor for the gauge output and this is not working as well. I am showing 0V running or not. Am I using the wrong clip? I understand that the oil pressure gauge has a condensor that is hooked to it, is this what the second clip in the harness is supposed to connect to?

Even then, to hook it up I had to dislocate the harness. This harness comes from the driver's fenderwell, ahead of the strut, to the engine and splits off - the oil pressure wires, the "extra" wire and what appears to be a ground wire split off from the harness. After that the harness splits off and one part of it goes to the starter and one part goes along the transmission and back. To hookup the "extra" wire I had to pull on the trans harness, out of the holders for it. What is going on? How is it routed? I am very confused at this point as well as very anxious to make sure my engine is getting correct oil pressure!

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The condenser should bolt to the clutch slave cylinder in OEM configuration, or, any ground in the area will work...

The connectors for the oil pressure sender & water temp sender are so different that I would think it highly unlikely you've got them swapped...With 12v on the wire, I would guess you've got the wrong wire, or something is wrong back up the circuit. Most gauges are low voltage signal synchro- type units, but I've never had to mess with mine, so I dunno. Wouldn't be much of a prob to go check the voltage on mine, if ya want a comparison...

That's what I am worried about, the oil pressure gauge is definitely getting 12V+.... I read that it is supposed to be 5.5-6V. If you could check I'd greatly appreciate it.

Wanted to let everyone know that I fixed it (well kind of). I had the coolant temp sensor hooked to the condensor. I took the IC off and hooked that up and the coolant temp sensor works fine now. But I believe the oil pressure gauge is busted. It was pegged high before and something happened and it's not only pegged low, the needle is below the screen on the gauge face. Very not good.