Plug on the back, on top of the engine. Use the old 3 wire or new 1 wire?

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03-25-2019, 07:11 PM
lovesdunes

Oil Pressure Sensor on top of the engine on the Drivers Side

Hi everyone. I am almost done with the LS Swap on my 97 2 door.

On the back of the engine up top on the drivers side, there is what I am guessing is the oil pressure sensor. The plug on the 97 has 3 wires...

https://photos.smugmug.com/1997-Taho...5_155358-L.jpg

The plug on the LS engine only has one wire...

https://photos.smugmug.com/1997-Taho...5_155542-L.jpg

The harness will be wired differently depending on what sensor is used.

I'm not using the computer from the 97. Only the computer from the 02.

Do I need to use the old sensor so the gauge on the dash reads correct?
03-26-2019, 07:50 AM
1991SSP

You will need to adapt the stock sensor to your new engine so that you will get correct oil pressure reading in the dash, retain the plug from the 97 as well
03-27-2019, 12:41 AM
lovesdunes

Quote:

Originally Posted by 1991SSP

You will need to adapt the stock sensor to your new engine so that you will get correct oil pressure reading in the dash, retain the plug from the 97 as well

Thank you for the reply. I was thinking I needed to use the old sensor and plug, but for some reason when I modified my harness I used the new sensor and plug. Yesterday while checking wires I found two loose wires looking for a home on the old sensor. Good Times LOL