Engine Management System (EMS): EMS stands for Engine Management System, which consists of a wide range of electronic and electrical components such as sensors, relays, actuators, and an Engine Control Unit. They work together to provide the Engine Management System with vital data parameters.

Engine management systems are Engine Control Units (ECU) which receives signals from variety of sensors, make calculations and send output signal to various functions of a vehicle to ensure efficient operations. Engine management systems are known to be the operating system of an engine.

An EMS is a self contained custom built computer which controls the running of an engine by monitoring the engine speed, load and temperature and providing the ignition spark at the right time for the prevailing conditions and metering the fuel to the engine in the exact quantity required.

Purpose of EEM: 1) Controlling of Engine operation electronically by electronic components. 2) Benefits to the motorist, more power, better mileage, a smoother idle and reduced operation expenses. Purpose of EEM: Controlling of Engine operation electronically by electronic components.

ECM is the engine control module. This is sometimes also called an ECU, which is still true because ECU (engine control unit) is a larger category of electronic modules which includes other control systems (such as air conditioning, cruise control, airbags, anti-lock braking system).

The passenger car equipped with the electronic control diesel engine mentioned above provides the following four additional advantages: (1) Good acceleration response; (2) Idle speed control which is affected by engine coolant temperature, on-off of the air conditioning compressor and battery voltage; (3) Cruise …

Fundamentally, the engine ECU controls the injection of the fuel and, in petrol engines, the timing of the spark to ignite it. It determines the position of the engine’s internals using a Crankshaft Position Sensor so that the injectors and ignition system are activated at precisely the correct time.

The electronic control unit (ECU) is a microcontroller that controls the parts of the automobile, and the EGR valve system is controlled by the engine ECU. Since the engine consists of many subsystems as well as the EGR valve system, a lot of computation is required for the operation of the engine [11] .

When people refer to your car’s “computer” you’ll often hear phrases like “engine control module” (ECM), “engine control unit” (ECU), “powertrain control module” (PCM), and “transmission control module” (TCM).

The ECM 1 is one such computer; it has a fuse is installed to protect the computer from sudden power surges or other component damage — the fuse will blow before any damage can reach the ECM. Many component defects can cause your ECM 1 fuse to blow.

1. INTRODUCTION EMS is a type of electronic control unit that controls the running of an engine by monitoring the engine speed and ensure optimal engine performance . It also measures the exact quantity of fuel required to start a engine. 2. Resource : http://www.economymufflerandbrake.com/

Optimum functioning of the EMS assures maximum engine power, with the lowest amount of exhaust emissions and the lowest fuel consumption. 2.

• The EMS is comprised of sensors for intake air and coolant temperature, intake manifold absolute pressure (MAP) and throttle position (TPS), as well as sensors for engine speed and signals for the required injection and ignition spark events, and a sensor for information about the oxygen content in the exhaust.•

The ECU monitors the performance of the engine and makes adjustments according to where the problem is. The ECU also does calculations of pulse length (injector time opening) and adjustments to any change in the engine. 13.