Need a tune for the OP gauge to work
holy shit man, i didn’t finish this thread and I’ve been trying to hook up this oil pressure gauge on my 2021 and I’m thinking I am going crazy cuz my sensor was def not 1/4” and not 1/8”. I’m messing withit right now after ordering a bunch of fittings and shit about to have a stroke and I just seen your post… son of a bitch I wish I finished reading this thread sooner.So I know this is an older thread, however I'm in the process of doing this on my '18 GT (3rd gen). Figured this bit of information may help someone in the future. The oil pressure sensor on the Gen 3 is not a 1/4 NPT. It is a 12 x 1.5 and you will need this type of tee fitting (see picture and it can be had cheaper). This is not a tapered thread, therefore it is sealed with a small o-ring. You'll need to pick up an extra one at your local parts house. I got mine from O-Riley's. Also, depending on your after market gauge sensor thread size, you may need a 1/4 NPT as opposed to a 1/8 NPT. Also be advised there is not a lot of room in there, so try to keep things as small as you can. One last bit of info, you'll need a 15/16" deep socket to remove the stock pressure sensor.
*I'll update this with pictures after I finish the install tomorrow.
I just got the part in today.. How did you get this to work with the sending unit? When I tighten in down, the hole is on the backside facing away from me, no way I can get back there to get the adapter and sending unit screwed in.. even if I found a shorter adapter to get in there, there would be no room for the sending unit to be screwed in.So I know this is an older thread, however I'm in the process of doing this on my '18 GT (3rd gen). Figured this bit of information may help someone in the future. The oil pressure sensor on the Gen 3 is not a 1/4 NPT. It is a 12 x 1.5 and you will need this type of tee fitting (see picture and it can be had cheaper). This is not a tapered thread, therefore it is sealed with a small o-ring. You'll need to pick up an extra one at your local parts house. I got mine from O-Riley's. Also, depending on your after market gauge sensor thread size, you may need a 1/4 NPT as opposed to a 1/8 NPT. Also be advised there is not a lot of room in there, so try to keep things as small as you can. One last bit of info, you'll need a 15/16" deep socket to remove the stock pressure sensor.
*I'll update this with pictures after I finish the install tomorrow.
I added a shim or two. I had the same issue. Hole was about 70° from where I needed it. I'll try to get under there tonight or tomorrow and snap a few pictures.
I finally got it to work, after ordering a few more adapters.. and a relocation kit for the sending unit, kind of feels rigged, but its holding up.. would be much better if I was only using the one adapter tho, but not possible at all from my experience.. Definitely was a pain in the ass.
Not at the moment.. I am off tomorrow, I can go out there and grab some photos if you want me to.. it was a pain. Probably not as bad if you have a lift, doing it in the driveway on my back was not ideal... if anyone knows of a better way to rig up the NPT fittings that would make me feel better.. but as of now mine is holding up so far.
This is what mine looks like. I had to use like 4 diffeRent pieces to make it work. Stock unit at the end on the left. Sending unit relocation line up top there.. mounted the sending unit by my air box since it was easy and already a hole there. Sorry the last photo is blurry but you get the picture.
