This write-up covers the OP-COM v1.67 firmware , a common version for clone-based Opel diagnostic interfaces. What is OP-COM 1.67 Firmware?
OP-COM is a PC-based diagnostic tool for Opel/Vauxhall vehicles. While original devices use different firmware, the "1.67" version is widely associated with Chinese clone interfaces based on PIC18F458 chips [1]. Primary Use:
Diagnostics, programming, and coding for Opel/Vauxhall vehicles (roughly 1996–2014). Key Capability:
It bridges the gap between older 1.39/1.45 versions and newer 1.59/1.64 clones, offering better compatibility with CAN-bus systems found in newer models like the Astra H, Vectra C, and Insignia. Key Features of Firmware 1.67 Improved CAN Bus Stability:
More reliable communication with high-speed CAN modules compared to earlier clones, reducing disconnects during programming [1]. Wider Vehicle Coverage:
Better functionality for later model years (up to ~2012-2014) than 1.45/1.59, particularly in accessing body control modules (BCM) and infotainment systems. Improved Programming: Opcom 1.67 Firmware
Enhanced capability to handle security-related functions like key programming, ECU pairing, and coding variants, provided the user has the security code (PIN). Compatibility and Software Software Version: Firmware 1.67 is generally used with OP-COM 100219a software versions. Driver Stability:
Many users report that 1.67 works reliably with standard FTDI drivers on Windows 7, 10, and 11, though clone software installation can be temperamental [1]. Hardware Limitation:
Firmware 1.67 cannot be upgraded to genuine 1.70+ versions and is strictly for clone hardware. Common Issues & Tips "Firmware Update" Loop: If software prompts to update the firmware, do not do it
. This often breaks clone devices (bricks them). Stick to 1.67. Clone Stability:
1.67 is relatively stable but, like all clones, it may struggle with very new vehicles (2014+) or specific immobilizer functions. Use Proper Drivers: This write-up covers the OP-COM v1
Ensure you use the specific drivers provided with the 1.67 software package to avoid "Interface Communication Error." Opcom 1.67
is widely regarded as one of the most stable and useful firmware versions for clone users, offering a good balance between vehicle coverage and connection reliability for DIY enthusiasts diagnosing Opel vehicles.
Here’s a concise social post you can use about "Opcom 1.67 Firmware":
Opcom 1.67 Firmware — What’s New & Why It Matters
Quick tip: use a reliable USB cable, stable power, and follow the official update steps from your device provider to avoid bricking. New stability improvements and bug fixes for ECU
I’m unable to provide a full “long report” on Opcom 1.67 firmware because:
However, I can summarize what a typical user report or technical summary of Opcom 1.67 firmware would include, based on online discussions (e.g., from Digital-Kaos, MHH Auto, Opel forums):
| Feature | 1.67 | 1.85 | 2.0+ | |---------|----------|----------|----------| | Clone interface compatibility | Excellent | Poor (requires hardware mod) | None (bricks clones) | | Windows 10/11 support | Via compatibility mode | Native | Native | | CAN-bus speed (bps) | 500k | 500k | 1M (for GM Global A) | | Astra K / Grandland X support | No | No | Partial (read only) | | ECU programming speed | Slow (stable) | Fast (risky) | Very fast | | Risk of bricking hardware | Very low | Moderate | High |
Verdict: If you own a clone Opcom, stay on 1.67. Upgrading to 1.85 will likely destroy your interface’s ability to communicate via USB.
Not all Opcom interfaces are created equal. The firmware is tied to the hardware’s microcontroller (usually a PIC18F2480 or similar). Clone interfaces sold between 2010 and 2017 generally work flawlessly with 1.67.
Warning: Newer "silver box" interfaces (post-2018) often come pre-loaded with firmware 1.85 or 2.0. Attempting to downgrade these to 1.67 can permanently corrupt the USB controller. Always verify your PCB version (open the case and look for a chip labeled "PIC18F").
Warning: Many websites offering "free Opcom 1.67" include trojans or crypto miners. Do not download from random file hosts.