CONTROL GP-XMSN ELECTRONIC 3482375 - Caterpillar

The 3116 and 3126 HEUI Air-to-Air Aftercooling (ATAAC) Engines are designed primarily for on-highway medium duty applications. The engines are four stroke cycle, in-line six cylinder engines with direct fuel injection.
(1) through (6) Engine cylinder numbers. (A) Exhaust valves. (B) Inlet valves. The 3116 and 3126 HEUI Engines are electronically controlled. The electronic engine control system was designed to provide electronic governing, automatic air/fuel ratio control, torque rise shaping, fuel injection timing control, and system diagnostics. The following programmable features are included in the electronic control: cruise control, PTO governing, vehicle speed limiting, idle shutdown timer, and exhaust brake control. Some 3116 Engines have the following features: high gear rpm limiting, low gear rpm limiting, and progressive shift engine speed control.Additional features such as improved cold starting capability, tamper resistance, diagnostics, an American Trucking Association (ATA) data link (SAE J1587), and an optional Engine Monitoring Package provide increased engine fuel economy and serviceability.Hydraulically Actuated Electronic Unit Injectors (HEUI) perform fuel pumping, fuel metering, and fuel timing functions. The unit injectors are controlled by the Electronic Control Module (ECM) using the camshaft position and the engine speed signals from the speed/timing sensors as well as inlet manifold pressure from the boost sensor. The engine's rated rpm is identified on the Information Film.The engine has built-in diagnostics to assure that all of the components are functioning properly. In the event of a deviation from the programmed limits, the operator will be alerted to the condition by a CHECK ENGINE/DIAGNOSTIC lamp that is mounted on the dashboard. Under certain conditions, the engine horsepower and the vehicle speed may be limited. A Caterpillar electronic service tool or the vehicle's cruise control switches (if equipped) may be used to display the diagnostic code. There are three types of diagnostic codes; active, logged and event. Most of the diagnostic codes are logged and stored in the ECM. Refer to Engine Diagnostics section of this publication for additional information.The ECM provides an electronic governor that controls the unit injector output in order to maintain the desired engine rpm. The electronic governor functions like the Caterpillar mechanical governor, but includes additional features.The cooling system consists of a belt driven centrifugal water pump and a water temperature regulator (thermostat) that regulates the engine coolant temperature. The cooling system includes and oil cooler and radiator connections which incorporate a shunt system.The engine lubricating oil, which is both cooled and filtered, is supplied by a gear type pump. Bypass valves provide flow of lubrication oil to the engine when oil viscosity is high, or if either the oil cooler or the oil filter elements become plugged.Engine efficiency, efficiency of emission controls and engine performance depend on adherence to proper operation and maintenance recommendations, and the use of recommended fuels lubrication oils, and coolants. Follow the maintenance recommendations in the Maintenance Schedule.Aftermarket Products and Caterpillar Engines
When auxiliary devices, accessories, or consumables (such as filters, oil, additives, catalysts, etc) which are made by other manufacturers are used on Caterpillar products, the