PEDAL GP-GOVERNOR 3278937 - Caterpillar

Note: This glossary is intended to be a general source of information. Not all of the terms that are listed in this glossary are applicable to your engine. Active Diagnostic Code - An active diagnostic code describes a condition that is currently present in order to alert the operator or the service technician of an abnormal parameter of engine operation. Refer to "Diagnostic Code" in this glossary for more information.Aftercooler - An aftercooler is a device that is used on turbocharged engines to cool the inlet air that has undergone compression by the turbocharger. The inlet air is cooled after the inlet air passes through the turbocharger. The inlet air is passed through an aftercooler (heat exchanger) that uses water for cooling. The inlet air that has been cooled advances to the inlet manifold.Aftermarket Device - An aftermarket device is a device or an accessory that is installed by the customer after the engine is delivered.Air Inlet Heater - The air inlet heater is used in order to improve the cold starting capability of the engine and the air inlet heater is used in order to reduce the white smoke. The operation is determined at three different cycles that are based on various engine parameters. power up/preheat cycle, crank cycle and engine start cycle.Alternating Current (AC) - Alternating current is an electric current that reverses direction at a regular interval that is reoccurring.American Wire Gauge (AWG) - AWG is a measure of the diameter of electrical wire. AWG is also a measure of the current carrying capacity of electrical wire. When the AWG number is smaller, the diameter of the wire is larger. When the AWG number is larger, the diameter of the wire is smaller.Analog Sensors - Analog sensors produce a DC output signal. The sensors are used in order to detect a change in temperature or pressure. The change is converted by the sensor to an electrical signal.Analog Sensor Return - The common line (ground) for the analog sensor from the ECM is used as a ground for the analog sensors.Analog Sensor Supply - The +5 VDC supply from the ECM is used to power the analog sensors.Atmospheric Pressure Sensor - The atmospheric pressure sensor measures barometric pressure. The sensor sends a signal to the electronic control module (ECM). The signal is used in engine control and in engine operation.Before Top Center (BTC) - BTC is the 180 degrees of crankshaft rotation before the piston reaches the top center position in the normal direction of rotation.Boost - The difference between the turbocharger outlet pressure and the atmospheric pressure is commonly referred to as boost.Boost Pressure Sensor - The boost pressure sensor measures intake manifold air pressure. The boost pressure sensor sends a signal to the Electronic Control Module (ECM). This sensor may also be referred to as the turbocharger outlet pressure sensor or the inlet manifold pressure sensor.Breakout T - The breakout T is a test harness that is designed to connect into the wiring harness.