How to Remove the 90 km/h Speed Limit for Trucks?

[AubreyRose]

The methods to remove the 90 km/h speed limit for trucks are: 1. Adjust the speed limiter screw to remove the limit; 2. For electronic speed limiters, it is necessary to go to a repair shop and ask a technician to use professional equipment to remove the limit. The reasons why a truck's air conditioning is not cooling are: 1. Accumulation of impurities in the condenser, resulting in poor heat dissipation; 2. Accumulation of dust in the air filter, leading to poor ventilation; 3. Damage to pipelines and connecting components, causing refrigerant leakage; 4. Compressor damage; 5. Expansion valve failure. Precautions for driving on highways: 1. Pay attention to traffic regulations and affix the novice driver sign; 2. Find an experienced driver to accompany you; 3. Inspect the vehicle before entering the highway; 4. Be aware of the speed limit when driving on the highway; 5. Pay attention to road signs, markings, and warning signs; 6. In case of emergency stops or accidents, ensure safety; 7. When exiting the highway, change lanes in advance.

[DeViolet]

Removing the speed limiter set at 90 km/h for trucks, I know some methods. Usually, this can be achieved through ECU tuning, which involves reprogramming the engine control unit with computer software to modify the speed limit parameters. Alternatively, you can directly replace the speed limiter hardware, such as changing the sensor or wiring harness. A friend of mine tried it but warned that it increases risks: trucks have heavy bodies, and high-speed driving can lead to poor stability, making them prone to losing control or increasing braking distance. Fuel consumption will also skyrocket, and it may cause engine overheating. The factory-designed speed limiter is for safety and fuel efficiency, complying with traffic regulations. I recommend not tampering with it unless absolutely necessary. If you must, have a professional technician handle it carefully using diagnostic tools to avoid damaging the vehicle or causing trouble. Safety first—don’t invite trouble for the sake of speed.

[LeLaila]

The speed limit of 90 km/h for trucks is a safety setting, and I do not support removing it. The speed limiter prevents speeding accidents. Trucks have a high center of gravity, making them dangerous when taking turns or braking at high speeds. Methods to alter the limiter, such as software flashing or hardware removal, are illegal and subject to heavy fines. My experience suggests that maintaining the factory speed limit is wiser—it reduces wear and keeps fuel consumption normal. If you want to improve speed, optimize driving habits, such as reducing acceleration or maintaining the engine properly. The speed limiter protects your safety, so why take unnecessary risks?

[LaCali]

Having driven trucks for many years, I once considered removing the speed limiter. I tinkered with modifying the ECU settings myself, which resulted in higher speeds but also significant body shaking, a sharp increase in fuel consumption, and constant worry about police checks. That experience taught me a lesson: the 90 km/h speed limit is there for protection. Don’t tamper with it lightly—safety is far more important than speed.

[Barros]

From the regulations, removing the 90 km/h speed limit for trucks may be illegal. Traffic laws stipulate that trucks are limited to 90 km/h, and unauthorized modifications may result in fines or vehicle impoundment. Methods such as ECU programming or hardware replacement require professional handling. I recommend first checking the vehicle manual to see if legal adjustments are possible. If not necessary, it's better not to make any changes—complying with the rules ensures safety and peace of mind.

[StCaleb]

To remove the speed limiter, I recommend handling it through authorized channels. Visit a 4S dealership or certified repair shop and have them check if the speed-limiting hardware needs to be removed. However, it's often better to leave well enough alone: the speed limiter ensures optimal performance and safety, and removing it carries high risks, such as loss of control or legal violations. My suggestion is: first assess the need—if it's unnecessary, leave it as is. Driving slower might actually bring peace of mind.