Are you looking to bring your 1993-1995 Mazda into the modern age of automotive diagnostics? The early 90s Mazdas utilized the OBD1 system, which is now quite outdated compared to the more versatile and user-friendly OBD2. For Mazda enthusiasts and owners of models from 1993 to 1995, there’s now a straightforward solution to bridge this technological gap: the plug & play OBD1 to OBD2 conversion harness. This meticulously crafted harness allows you to easily upgrade your Mazda’s diagnostic capabilities, and is especially beneficial for those considering a Millenia MAF conversion.
This conversion harness is designed for a seamless integration. Instead of complex wiring modifications, this harness offers a true plug-and-play experience. You simply disconnect your factory ECU, plug in this adapter harness, and then connect an OBD2 ECU. For those aiming for a Millenia Mass Air Flow (MAF) sensor conversion, this harness simplifies the process even further. By soldering the provided MAF and Intake Air Temperature (IAT) sensor connectors in place of the original Volume Air Flow (VAF) connector, you can complete the MAF conversion alongside the OBD2 upgrade.
One of the most significant advantages of this conversion is the ability to use a standard OBD2 code scanner. Forget about the old method of jumping the GND and TEN pins to decipher engine codes. With this harness and an OBD2 ECU, you can plug in any basic OBD2 scanner and retrieve diagnostic trouble codes effortlessly, making troubleshooting and maintenance significantly easier.
Two options are available to suit your specific needs. You can opt for just the harness itself, or a complete kit that includes everything required for a Millenia MAF conversion in conjunction with the OBD2 upgrade.
Available Options:
- Harness Only: $165 shipped. Ideal if you only require the OBD1 to OBD2 conversion.
- Full Conversion Kit: $185 shipped. Includes:
- OBD1 to OBD2 Conversion Harness
- MAF Pigtail Connector
- IAT Pigtail Connector
- IAT Sensor
- 5 Sections of Heatshrink Tubing
- Detailed Instructions for Soldering Pigtails
The harness is available in two lengths to accommodate different mounting preferences. One version is approximately a foot long, while the other is around 6-7 inches. Both lengths are designed to provide ample room to work with and utilize the factory ECU bracket, ensuring a clean and secure installation.
Important Note for Millenia MAF Conversion:
Please be aware that when performing a Millenia MAF conversion, a check engine light may illuminate. This is because the Millenia ECU is originally designed for an automatic transmission (ATX) vehicle and may throw ATX-related codes. However, this is generally not known to negatively impact engine performance.
While primarily tested on 1993-1994 models, compatibility with 1995 Mazdas is expected and testing is planned to confirm this.
For any questions or further clarification, please feel free to reach out. This OBD1 to OBD2 conversion harness is a great way to modernize your older Mazda, making diagnostics simpler and opening up possibilities for performance modifications like the Millenia MAF conversion.
