Opcom 167 Firmware Work May 2026
Cause: Microsoft’s automatic driver update installs FTDI v3.x, which blocks counterfeit chips. Solution:
Remove the Opcom 167 PCB. Locate the PIC18F2580 (or the 2585 variant). Unlike the older 160 version, the 167 does not have a convenient ICSP header. I had to solder six jumper wires to the following pins:
If you own an older Opel/Vauxhall and already have a working OP-COM interface, upgrading to firmware 167 is worth it – better stability and module access. But if your hardware is faulty or you’re expecting dealer-level performance on new cars, you’ll be disappointed.
Recommended for: Home mechanics with pre-2014 Opel/Vauxhall/Chevrolet (Europe).
Not for: Professional shops or anyone expecting genuine Tech2 performance.
OP-COM v1.67 firmware is considered the stable, final version for PIC18F458-based diagnostic interfaces, enabling deep dealer-level access for Opel, Vauxhall, and Saab vehicles from 1987 to 2021. It provides comprehensive diagnostics, including full system scans, live data, key programming, and module coding while maintaining compatibility with both older and newer software versions. For detailed information on identifying authentic OP-COM hardware and capabilities, visit Ozon.ru.
OP-COM 1.67 firmware is widely considered the last known stable version opcom 167 firmware work
for clone diagnostic interfaces used with Opel and Vauxhall vehicles. Unlike later versions (such as v1.99), v1.67 is built on the high-quality PIC18F458 microcontroller
, allowing it to be safely flashed, upgraded, or downgraded to ensure compatibility with various software versions. Core Capabilities of OP-COM 1.67
The v1.67 firmware enables dealer-level access for vehicles from 1987 to 2016 (and some systems up to 2021). Full System Diagnostics
: Read and clear fault codes for engine (ECM), transmission (TCM), ABS, ESP, airbags (SRS), and climate control. Live Data Monitoring
: Real-time tracking of system parameters like battery voltage, accelerator pedal position, and boost pressure. Advanced Coding & Programming OP-COM v1
Activate hidden functions such as cruise control or trip computer. Program new ignition keys and immobilizer transponders.
Perform actuator tests and adaptation for replacement modules. Key Advantages Over Other Versions Firmware v1.67 Firmware v1.99 (Clone) Microcontroller Genuine PIC18F458 (Flashable) Non-flashable/Fake chips High; connects to all modules Unstable; often fails to read certain modules Versatility Can be downgraded to older versions Locked; attempting to flash brick the device Installation & Configuration Steps
To properly set up an OP-COM 1.67 interface on Windows (XP to Windows 11), follow these steps:
OP-COM firmware version 1.67 is a significant update for users of the OP-COM diagnostic interface, primarily used for Opel/Vauxhall vehicle diagnostics and programming. Unlike newer "v1.99" or "v1.95" versions often found on generic markets (which are frequently fake version numbers), v1.67 is recognized by enthusiasts as a stable, high-compatibility firmware for specific PIC18F458-based interfaces. Key Features and Stability
Hardware Compatibility: Specifically designed for genuine or high-quality clones using the PIC18F458 chip. Lower-quality interfaces with "fake" chips (like the PIC18F45K80) may not support this firmware and can be "bricked" (rendered useless) if an update is attempted. final version for PIC18F458-based diagnostic interfaces
ECU Support: This version improves communication with newer Engine Control Units (ECUs) and Instrument Clusters that older firmware (like v1.39 or v1.45) might struggle to recognize.
Flashability: It is often used to "downgrade" or "upgrade" clones to a known stable state, allowing them to work with software versions like OP-COM 2012 or 2014 Professional. Performance & Usage Tips
Stability: v1.67 is often preferred over higher-numbered "fake" versions because it provides more reliable CAN-BUS communication, reducing "ECU not responding" errors during sensitive tasks like key programming or DPF regeneration.
Software Pairing: To get the most "work" out of this firmware, it should be paired with compatible software versions. Users often report the best results when using it with Vaux-Com 120309a or similar stable releases.
Risk Warning: Never attempt to update the firmware using the "Check for Updates" button within the OP-COM software itself, as this can detect a clone and disable the interface. Manual flash tools (like OCFlash) are the standard way to install v1.67. Why Version 1.67?
While there are technically newer versions, 1.67 remains a "sweet spot" for many DIY mechanics because it supports the majority of Opel/Vauxhall models from 1992 to approximately 2014/2015 without the bugs found in experimental or counterfeit firmware versions.
Are you planning to flash an existing interface to v1.67, or opcom v1.7 not responding ecu problem - Facebook