Success...finally. So in a nut shell it appears the previous owner tried to do some trouble shooting. When I picked up the car we talked shop a bit so he'* defiantly a DIY'er. The wires were riddled with probe holes right next to metal..I can just imagine a short or two when his probe hit the metal behind. So we started with an AC not working. So I checked for leaks by vacuuming the system and checking my needles every 30mins or so. Noted a slight leak, roughly 1cfm every 2 hours. So hoped leak sealant would do the trick. Charged the system, or tried when I noted my pressure was getting too high for only 20oz in. If memory serves correct it was at 80 and rising, so clutch should have kicked in. Checked fuses and all were good.
Pulled the car in the garage and let it cool down. Came back bout 3 hours later and noted a small puddle of green freon oil on the floor in the front. Looked through the grill and a steady bubble of freon was seeping from the condenser. That was a stroke of luck easiest leak ever.
Started my tear down, to look for the pressure sensor. I know it has one but cant see it. Eureka!! Hiding under the air filter housing. To my disappointment no voltage to be found. In all honesty I expected to see 12v, but thanx to Tech II providing helpful and accurate info I should have at least 5v. Not only that but what I should be getting on which wire.(thanx a mill) So double checked and still not even the 5 volts.
Pull A Part here I come. Found a PCM still in the air filter housing, SCORE!!! Only cost 35.00 SCORE. Sine I had to replace the condenser, I removed the AC Compressor to tear down the clutch plug to install some shrink wrap. One of the wires had been attacked by a razor, plus it was filthy from an old valve cover leak I'm assuming. While I had on my bench I added a crimp style T-Connector and about 3 feet of wire for future trouble shooting. So with the new/used PCM installed we have 5 volts now, great. Installed a new pressure switch as well. Reassembled everything and recharged the system. Got up to 80 this time but still no clutch. Grabbed my 3 foot wire and probed it, nodda. gave the fuse a once over again and its fine. Removed the radiator fan assembly to test the AC Compressor pressure switch now that were charged. Shows continuity between the pins, OK good. Pulled the relay at 52 and tested what would be the sockets for pins 87 or 30 for continuity with the wire I installed going to the clutch. Good tone at 30 so we know which pin is for the clutch and that the wiring from the relay to the clutch is good. Humm, bench tested the relay, its good. Applied 12 volts to my test wire and the clutch solenoid engages, OK so clutch is good. While I had the clutch working I charged the AC. Cleaned up, packed up, slept on it. While mauling everything over I figured that only left the fuse box itself.
Refreshed and thinking clearly I started with the AC Relay, I probed sockets for pins 87,85 and 86. We tested 30 the day before remember. 87 should be my 12v as its the N/O circuit for the clutch. As for 85 and 86 one should have 12v and the other ground, just wasn't sure which was which. So probed with the key on and off. I got ground at 85 and 12v at 86 with the key on. But nodda at 87 with or without the key, which should be 12v. Wiring underneath or pins must be damaged, disassembled the fuse box and low and behold.
Now I see why I'm not getting anything on 87. But I'm puzzled as to why I have key 12v at 86 as the wires are missing pins 86 and 87 altogether. Now I'm really confused. I'll be honest this really threw me a curve, I was confident it didn't come this way from the plant, and I know they have quality control, surely they would have noticed the AC not working. But I couldn't imagine someone doing this either. So to be sure I probed, then probed and probed again. To my relief the socket for 86 is shared internally with quite a few others, all originating from relay 60 the IGN relay. So that'* why I have 12v with the key at 86. So the black wire is fine were it is. So for my CSI moment. The pressure sensor goes bad but completely out of view, so someone, air quotes, probes every wire he thinks deals with the ac and shorts out the PCM. He then moves to the relay. Confused cause he has a good fuse and relay but no AC, disassembles the fuse box, test the wires, which is pointless cause our PCM is bad by this point. Saw were the black wire was and put the brown wire next to it thinking that'* were it goes. Which is why I take plenty of photos, cause I could so see myself making the same mistake. Summer here in Georgia is not for the faint of heart, so Craigslist it is. So I relocated the brown wire. rechecking my work, I now have continuity at 30 to the clutch, check. I have key 12v at 86 and key ground at 85, check. And at last constant 12v at 87. crossing my fingers I start her up and grin ear to ear as the AC compressor kicks in and blows ice cold air. And the best part, when I checked my manifold this morning I haven't lost an ounce of freon.
Thanks again Mike and Tech for your help.