How to remove the factory speed limit of 90 km/h on FAW J6P?
2 Answers
The speed limit function can prevent speeding issues. The owner can set or cancel the speed limit via the steering wheel controls. For speed limits that have been programmed into the ECU system, specialized computer reprogramming is required for removal; otherwise, it cannot be deactivated. Manufacturers set speed limits to ensure safety. When trucks exceed speed limits while fully loaded, the braking system may fail to stop the vehicle effectively in emergency situations.
Having driven trucks for over a decade, I've found that the factory speed limit of 90 km/h on the FAW J6P is set for safety reasons—to prevent accidents caused by speeding, as well as to reduce fuel consumption and engine wear. If you're considering removing this limit, be cautious—it's not a simple task. Typically, you'd need to use diagnostic tools to connect to the OBD port and reprogram the ECU to disable the speed limiter. However, this requires professional equipment and expertise. Attempting it yourself can lead to errors, and damaging the system would create even bigger problems. Additionally, removing speed limiters is illegal in some regions, and the fines can be hefty. My advice? First, assess your vehicle's usage. If you genuinely need higher speeds—say, for remote highways—it's safer to have a professional repair shop handle it. Never cut corners for convenience—safety comes first!
