how to wire oil pressure guagr

[jmoore16]

was given a auto meter electric oil pressure guage but i don't have ant wiring directions.does anyone know how to wire the the sending unit and the guage please help. if there's differences the gauge is a pro-comp ultra-lite Auto Meter electric oil pressure gauge,thanks

[bobafett]

They are very very easy to wire up, but you will need to accommodate the pressure sensor somehow. On the back of the gauge you will have a bulb with one white wire and one black wire, if you want the gauge lighting to come up with the headlights (and dash lighting that comes on when you turn on the headlights) you will have to tap into one of those circuits.

You will have to check with a DMM (digital multimeter) but I believe one of the fusible links under the dash by the fuse panel is activated by the head light circuit.

Run the white wire to this fusible link location using a female spade connector, and the black wire to a common ground or chassis ground. (I just used a self tapper to the floor after cleaning up the paint, but there are many many bolts you can use. Just test with your DMM to make sure its a good ground connection.

For the gauge itself you will have 3 wires.

There is an 'I' which is +12V switched ignition power, you will tap into one of the other fusible links that is activated by the ignition switch. This way when you turn the key on the gauge is automatically powered. Test which fusible link goes hot with +12V when you turn the car on, and use a female spade connector to tap into that location.

Then you have 'G' or 'GND', you can ground this to the same point as your bulb lighting, or any other legit ground in the car.

The last and most important wire is the 'S' which stands for sensor. Just run a wire through the firewall to the sending unit in your engine bay that you will need to install.

The easiest and most simple method for installing a oil pressure sensor on an accord is to install an oil filter sandwhich plate on the oil filter housing. Here is a nice cheap one that will fit. :) http://www.glowshiftdirect.com/oil-filter-sender-adapter-20mm-15-thread.aspx

That sandwich plate has 4 1/8 npt ports on it, which is the thread pitch on your oil pressure sensor.

Don't be tempted to just remove your oil pressure dummy switch and put the sensor in it's place. It is the wrong thread, and although it will feel close, it WILL leak, and then you will have ruined the threads for ever having a dummy light again without IT leaking. So just spend the $30 and get the sandwich plate and save yourself a big headache.

Also, here are Autometer directions which basically tell you the same thing but probably make a lot more sense and will be easier to understand than me:

http://autometer.com/cat_gaugedetail.aspx?gid=3130&sid=11
http://autometer.com/productPDF/0621B.pdf

Hope this helps, if you have any other questions, I can probably help....

http://a20turbo.com/features/chris/racepanel/IMG_0851.jpg

http://a20turbo.com/features/chris/racepanel/IMG_0831.jpg