Experiencing trouble connecting your Bafx Obd2 Reader to your 1999 Miata? It’s a common frustration, especially when the device seems to work perfectly on other vehicles, like a Honda Civic. Many Miata owners have encountered similar issues, finding their BAFX adapter failing to communicate with the ECU, even though the reader powers on. Let’s explore potential reasons and solutions to get your OBD2 reader working with your NB Miata.
One of the first questions to consider is whether the issue lies in protocol compatibility. While OBD-II is a standard, some older vehicles, including the ’99 Miata, can be a bit particular about the protocols they use for communication. It’s possible that the BAFX OBD2 reader, while generally compatible, might not be automatically selecting the correct protocol for your specific Miata model. You might want to check if your OBD2 app, such as Torque or Car Gauge Lite, allows you to manually specify a protocol instead of relying on the “Auto” setting. Consulting your app’s documentation or online forums related to Miata OBD2 connectivity could provide insights into recommended protocol settings.
Another point of confusion can be the location of the OBD2 port itself. You mentioned finding a port under the fuse box cover to the left of the driver’s knee. While this is indeed an accessible location, it’s worth double-checking if there might be another OBD2 port situated lower in the footwell area. Mechanics sometimes access ports in less obvious locations to keep diagnostic tools out of the way. A quick check lower down in the driver’s side footwell could reveal a different port. If you are indeed using the correct port under the fuse box, consider whether its location is practical for using a scan tool while driving. The placement might be awkward and prone to accidental bumps, and keeping the fuse box cover off isn’t ideal.
Finally, it’s worth considering the possibility that some NB Miatas are simply more selective about OBD2 readers. While the BAFX reader is generally well-regarded and not the cheapest option available, there’s a chance it might not be fully compatible with the ’99 Miata’s specific electronic system. Before concluding the reader is faulty, explore online Miata forums and communities for recommendations on OBD2 readers that are confirmed to work reliably with NB generation Miatas. User experiences and suggestions for alternative brands or models could point you towards a more compatible device, saving you time and frustration. It’s possible that trying a different brand or model of OBD2 reader, specifically one known to work well with Miatas, might resolve the connection issue.
