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Is it possible to install an OBD-II port in an older car?

I am curious if it’s possible to install an OBD-II port into a car that didn’t originally have it stock? I’m doing a custom rebody of my ’87 Fiero into a supercar clone, and I’d like install an LCD panel for the primary gauges, using something like DashXL to drive the display. Unfortunately,…
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I am curious if it’s possible to install an OBD-II port into a car that didn’t originally have it stock? I’m doing a custom rebody of my ’87 Fiero into a supercar clone, and I’d like install an LCD panel for the primary gauges, using something like DashXL to drive the display. Unfortunately, DashXL requires an OBD-II port, which weren’t installed on cars until 1996.

Answer:
Yes. I m doing it right now. With any OBDii computer (I m using one from an 03 GM truck) and the correct pinout, you can determine which wires do what. I have already successfully hacked the computer out of the wiring harness and gotten it powered up and talking to my Bluetooth dongle via the OBDii port, and I got Torque Pro connected and talking to the computer. I researched which sensors I needed to make it work with my old Ford 460. RPMs are provided by the HEI distributor I installed. Oil Pressure comes from the correct oil pressure sender connected to the engine via an adapater, and the temp comes from a temp sender I found with the correct resistance curve.So far I m a grand total of $80 into this, and I will be able to use a tablet to read out all of the guages. This is so I don t have to use the dreaded triple-guage and Tack hose clamped to the steering column in my 74 LTD Wagon. Anyone who says you can t hack the computer out isn t trying hard enough. It only took a couple hours to figure it out and get it all working, and then it s just a matter of providing the correct sensor inputs.

When you go to the junkyard, pull the computer and make sure you get the connectors with about 6 inches of wire remaining, You do not need the harness, but if you can get the sensors, make sure you get the sensor connectors as well. Also pull the OBDII port out (it s usually under the dash somewhere on the drivers side. Each Manufacturer does the port a little different, so it helps to understand how computers and serial buses work. This was a really easy project, and it s way cheaper than the $2500 Autometer wants for their Competition Dash setup.

No, unless you know how to install and program a completely new computer system to go with it.

No.