You go to a shop which has the software appropriate to the engine your truck has and have them adjust it. If it's not your truck to do this with, the ECM will be password protected, and you won't be able to.
That's programmed into the ECM. You'd need to hook a computer with the appropriate software for the engine to the ECM, and adjust the settings there. If it's not your truck to do this with, then the ECM will most likely be password protected, and you won't be able to do this.
If it's your truck do this with, and you're in a country where it's legal to do so, then you go to a service center with the software which corresponds to your engine (in N. America, Volvo trucks are currently available with Cummins or Volvo engines... Caterpillar and Detroit Diesel were also available in the past), and have them adjust the settings. If it's not your truck to do it with, you don't.
You need the Volvo software to do this. It's programmed into the engine ECM.
Questions pertaining to illegal acts are not permitted to be answered on this website. If you're in a country where the speed of your truck is not dictated by law, you simply take it to a dealership, and have them change the speed settings in the ECM.
Increase mass For a truck increase the load on the truck
One can purchase Volvo truck parts at: Auto trader, Parts Seek, Market Book, Truck Paper, Trucker to Trucker, HGV Direct, Heavy Truck Parts, Top Speed.
You take it to a Volvo Dealer and they plug in a laptop and reprogram some parameters on the ECU in the truck.
The speed controls are programmed into the engine ECM. If it's not your truck to do this with, the ECM is probably password protected.
You need Volvo's software to do this, and it's not cheap, whatsoever. You also need some means of accessing the electronic engine controls, such as a control box, or laptop computer with compatible connections. If it's limited, it most likely either isn't your truck to make those changes to, or else is governed because your local/national laws dictate it, and you'd probably be best to leave it alone. But you can still envy me for driving an ungoverned truck.
You find a shop with the appropriate software for the engine ECM in your truck, and have them adjust it. If it isn't your truck to do this with, the ECM will be password protected, and you won't be able to.
Depends on what you're trying to find out. You can find out some information direct from Volvo.
None. If you remove the relay which provides power to the electronic engine controls, the whole thing shuts off. Then, your speed is reduced to zero. These vehicles were designed to prevent driver tampering, bear in mind. Besides, if your truck has the Volvo SmartLink system or Qualcomm system, it'll give you away, anyhow.