Pinout for 1991 oil pressure sensor?

[bizzybody]

Gave up on trying to get the old 1991 computer and harness working on my 1982 swap.

Bought a ECM and harness from Performance Fuel injection. I ordered it with the setup for small cap distributor, 700-R4 with VSS and the newer (non-adjustable) TPS and 1 wire O2. Thus it will have the speed input for proper operation.

It doesn't use the ESC, knock sensor, neutral/park (I'd already upgraded that switch when I put the tilt column in.) or a connection to the oil pressure switch.

Fluckit, I don't care what it doesn't use, I just want the Q@#%@#% thing to run.

I'd already installed a new 1991 style 3 wire oil pressure sensor and I assume I had it connected correctly for the ECM and gauge.

But I want to make sure. Which wire is ground and which goes to the gauge?