CYLINDER GP-BUCKET 2590859 - Caterpillar

Example of Pulse Width Modulation (PWM) SignalsRated Fuel Limit(Rated Fuel Limit on ECAP) indicates the maximum allowable fuel position (longest injector pulse). It will produce rated power for this engine configuration.Reference VoltageA regulated voltage supplied by the ECM to a sensor. The reference voltage is used by the sensor to generate a signal voltage.SensorA device used to detect and convert a change in pressure, temperature, or mechanical movement into an electrical signal.Service Program Module (SPM)A software program designed to adapt an Electronic Service Tool to a specific application.Short CircuitA condition where an electrical circuit is unintentionally connected to an undesirable point. Example: a wire which rubs against the engine until it wears off its insulation and makes electrical contact with the frame.SignalA voltage or waveform used to transmit information, typically from a sensor to the ECM.Speed/Timing SensorProvides a Pulse Width Modulated Signal to the ECM, which the ECM interprets as crankshaft position and engine rpm.Standard SAE Diagnostic Communications Data LinkRefer to CAT Data Link.Static TimingThe basis for correct fuel injection timing and valve mechanism operation, as determined by the Timing Reference Ring and alignment of the rear gear group. Also referred to as Base Timing.SubsystemAs used here, it is a part of the Electronic System that relates to a particular function, for instance throttle subsystem, etc.Supply VoltageA constant voltage supplied to a component to provide electrical power for its operation. It may be generated by the ECM, or it may be vehicle battery voltage supplied by the vehicle wiring. Throttle PositionThe ECM interpretation of the signal from the Throttle Position Sensor.Throttle Position SensorAn electronic sensor which is connected to an accelerator pedal or a hand lever and sends a Pulse Width Modulated Signal to the ECM.Timing Calibration SensorA magnetic pickup installed in the Top Center (TC) port. This sensor is used by the ECM to perform a timing calibration.Top Center (TC)A reference to crankshaft position when the piston has reached the very top of its rotation during the compression stroke.Total TattletaleTotal number of changes to all Programmable Parameters stored in the ECM.Turbocharger Compressor Inlet Pressure SensorThis analog sensor measures the turbocharger compressor inlet air pressure and sends a signal to the ECM.Turbocharger Compressor Outlet Pressure SensorThis sensor measures the turbocharger compressor outlet air pressure and sends a signal to the ECM.