Locating the OBD2 port in your NA Miata can sometimes feel like a mini treasure hunt. Unlike newer vehicles where the diagnostic port is prominently displayed under the dashboard, the first generation (NA) Mazda Miata, produced from 1990 to 1997, often hides it in a less obvious spot. If you’re trying to connect a scan tool to diagnose a check engine light or monitor your Miata’s performance, knowing exactly where to look is crucial.
For many NA Miata owners, the OBD2 port is found on the passenger side. Specifically, it’s often located behind a removable plastic cover panel to the right of the passenger’s right shin. You’ll need to pop off this small rectangular plastic cover to reveal the OBDII connector tucked away behind it. This placement can be a surprise, as it’s not in the typical driver-side under-dash location seen in many other cars.
While some manuals and online resources might indicate the OBD2 connector should be positioned above the driver’s right knee, approximately under the cigarette lighter, this isn’t always the case for NA Miatas, particularly earlier models within the generation. Many owners discover that checking the passenger side panel is the key to finding the port.
If you’re having trouble mounting your OBD2 connector securely, you’re not alone. The original mounting points, often two threaded screw holes molded into the plastic dash panel, can become damaged over time. These holes, intended to face the front of the car, are sometimes found broken, and even when intact, the spacing might not perfectly align with the connector bracket.
The wiring for the OBD2 connector in NA Miatas typically runs towards the center console area. This wiring length generally confirms that the intended location is on the right-hand side of the car, rather than extending to the driver’s side.
In conclusion, when searching for the OBD2 port on your NA Miata, start by checking the passenger side, behind the plastic cover panel near the right shin. This is the most common location and will likely save you time and frustration in connecting your diagnostic tools.
