How does the PowerBox PD work?
With the PD (Pumpe Düse) or unit injection system, the diesel fuel is heated to a very high temperature due to its thermal properties. The direct injection system has a temperature sensor that communicates with the Electronic Control Unit (ECU). When diesel fuel is heated to substantially higher temperatures, its density decreases. When this occurs, the fuel temperature sensor communicates the change, and the ECU compensates by injecting more fuel for combustion. This is where the PowerBox intervenes. Integrated electronics communicates a higher temperature to the ECU, causing more fuel to be injected. The additional fuel is burned along with the excess air, which leads to a proportionate increase in output. The increased fueling will not override the safe operating parameters of your engine and does not change or interfere with ECU functioning. The PowerBox PD includes plugs that are compatible with those originally installed in your vehicle, and it easily installs directly to the fue
