[AZ986S]

Originally Posted by Dave80GTSi

Huh. That's the same sending unit that I have used on several different cars, and it is the correct 0-80 psi sending unit which matches the gauge. So no clues there.

Upon a cold start, my idle pressure's pretty high, as one would expect. Once warmed and at idle, the pressure is corresponding low, again as one would anticipate. And when running thru the gears, the needle swings left to right as a function of rpm, just like you'd think it oughta do.

So I guess that I am out of possible answers now!

Thanks - DM

Same setup for me too. I run M1 15W50 and see 80+ psi cold, 15-17 psi after a session (hot ~ 220F). I have tons of live data on this on my youtube videos. From 3,000 RPM up to 7,000 when oil is hot, pressure hovers around 40-45 psi. Oil pressure gauge definitely moves instantaneously. My oil temp location is on the bank 2 valve cover rear.

All my wiring and gauge connections are behind where my cup holder was and I used the console metal frame for a good ground. Works fine for me. Your oil temps seem slightly high considering it was cold. I will see maybe 225F with 85-90F air temps, but I do have a 2 qt Accusump.