A powertrain system includes an internal combustion engine, at least one electric machine and an electro-mechanical transmission operative to transmit torque to a driveline. The tool includes a tubular section for containing the grip while receiving a cable. The driven socket includes a concavity, a second driving portion, and an annular recess formed at the concavity. The packet is routed to the destination node without forwarding the packet to the security device. The system includes a fuel-injection amount-detecting unit, a maximum point-assigning unit, an engine idle driving fuel-injection amount driving point-assigning unit, \xbe and \u2155 point-assigning units, a fuel-injection amount cutting point-assigning unit, a fuel-injection amount display-indicating unit, a fuel-injection amount graph-regulating unit, and a liquid crystal display unit.