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dodge - The history of petrol engines could be dated all the way to the 19th century once the first single cylinder engine was designed. This also marked the integration with the "carburetor" into the design of automotive engines. Further improvements inside the design resulted in multi cylinder petrol engines, however, the best innovation to be built-into petrol engine design was over in the 80's by BMW once they created a system which controlled the fuel injection, air flow and the ignition sparks from the engine. Further refinements and iterations within this design have led to a system which has replaced carburetors in modern petrol engines. This computerized set up is known as an Engine Control Unit plus it consists of an array of sensors accustomed to monitor various exhaust parameters.

Engine control units present in modern cars have the effect of monitoring and operating every function of an internal combustion engine, from changing the valve timing to governing the amount of fuel that's injected based on a a few different parameters, the ECU is widely considered the brain of modern automobiles. The Chrysler 300m ECU is found at the rear of the engine bay, at the rear of the center of the dashboard.

jeep - The Chrysler 300m ECU is responsible for controlling the various parameters of car engines like the air/fuel mixture, the valve timing as well as the timing of the spark ignition. Unlike other ECUs, which may have a fixed number of engine parameters and mainly control the quantity and air and fuel that switches into the combustion chamber, the Chrysler 300m ECU is a highly advanced control module and is also able to control a huge array of engine parameters to boost the power and efficiency of the engine. The Chrysler 300m ECU is really a sophisticated computerized device which monitors the engine performance and adjusts it according to predefined performance maps stored on the onboard chip of the ECU. The Chrysler 300m ECU communicates with the throttle position sensor and also the Mass air flow sensor to ascertain the amount of air that is being sucked into the engine and adjusts how much fuel accordingly. This not merely provides a substantial increase in power, but it also increases the economy of the vehicle. Utilizing this ECU, Chrysler provides a new technology known as cylinder deactivation which basically involves shutting off a few cylinders of the engine if the vehicle is cruising. This know-how not allows for huge fuel savings with out sacrificing any power by deciding on a smaller engine.

The chrysler 300, engine control unit is also capable of eliminating engine "knocking". Engine knock will be the phenomenon in which the petrol undergoes combustion prior to being ignited by the spark plugs, and as such, knocking can cause significant amounts of damage to the engine. However, when the Chrysler 300m ECU detects an imminent knocking effect, it adjusts the valve timing and delays it by a number of milliseconds in order to avoid premature combustion of the fuel. The Chrysler 300m engine control module greatly raises the power, fuel economy and efficiency from the engine and the effectiveness with this device is evident looking at the widespread adoption