Is it my understanding that I should remove the oil pressure sensor mounting tube and no use it.
Then get the following parts from a hardware or plumbing supply store:
a). 1/8" nipple (1" long)
b). 1/4" to 1/8" reducer (female inside male)
c). 1/4" to 45 degree angle (female both ends)

And reinstall the sensor without the tube.

Has everyone done this on theirs?

No. I have not.

WHY would you do this? There's no advantage that I know of. The only time the sensor was at the bottom was non-AC cars. I think the compressor would be in the way on an AC equipped vehicle. Your sensor harness is at the top so you will have to rewire to get it down to the bottom of the engine. If you're upgrading to the newer style sensor, you can do it up top, very easily. I did a non-permanent upgrade, but all you need do is cut and splice the wires at the top to make it permanent. My How-To thread. http://www.gafiero.org/bbs/index.php?topic=1642.0

[This message has been edited by fierofool (edited 01-24-2017).]

quote Originally posted by fierofool: WHY would you do this?

Like Because he read TSB etc calling for this using 88 sender...
See my Cave, Oil Sensor

TSB maybe has some fitting wrong but you can use it to guide to relocate the sender w/ ac or not. IOW relocate anyway you want/need so rain etc can't soak the plug. Metripak plugs are weather resistance, not water proof.

When upgrade old crap sender to 88... better to make the change permanent.
1. Most Old sender socket are crap too and when the spade end fall out could short the fuel pump circuit.
2. Pigtails have enough wire to make relocation easy.

How Its Made Oil Pressure Sensors is 88 sender. Fiero just have more plastic to fit in about same size as old mechanical units.
https://www.youtube.com/watch?v=OWrj6A3-_Os

------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)

The Ogre's Fiero Cave

[This message has been edited by theogre (edited 01-24-2017).]

Hmm. That's interesting.

I read Ogre's cave stuff.

So, do it or not ?

Thanks

How many miles on your car and are you replacing the sensor? Mine only has 7600 so I don't feel the need at this point. Wiring, sensor and all in good shape. There will not be any water making it's way to that location as A) I don't get the car wet much, and B) no recalls have been done to mine so I still have the back weatherseal on the decklid.

For the last 10 years my 85 SE V6 leaked oil all over the place- finally read about the 88 vs early pressure sensor- replaced it and the connector...No more oil leak, and the sensor is smaller and it was cheaper.....win-win-win!

If you're making it permanent and splicing it, I don't understand why anyone would go to all the trouble of removing the tubing, trying to locate and install the replacement fittings, snaking wiring from the top of the engine past the exhaust manifold and still have to splice the wire. There wasn't enough pigtail on the new harness to reach much further than the end of the valve cover when connected to the old harness. And I cut nothing off either.

The stock 88 sender is up top, screwed into the tube. Rainwater gets into the harness plug through the vent grate and travels down along the harness wires. The first harness I installed shorted with rainwater, causing the pump to run until it drained my battery. That's when I installed the split plastic wire loom cover to protect it from rainwater or water being pushed into it due to the speed of the car. In my case, it also keeps a temporary connection from shorting should the orange 12V terminal come out. I will eventually cut and splice to make the connection permanent but will keep the plastic wire loom sleeve over the terminal.