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Engine control module

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Victor Murray
Victor Murray

The engine control module (ECM), also known as the powertrain control module or engine control unit, uses sensors to monitor various aspects of the engine and control actuators based on the sensor data. The document lists 10 common sensors that the ECM uses, including temperature, pressure, airflow, crankshaft position, throttle position, oxygen content, and knock sensors. It also describes the basic function of each sensor and what happens when a sensor fails, such as the ECM displaying a check engine light.

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Engine Control Module System
Engine control module is known as power train control module or engine control unit
Requirement In A Car
Requirement The main function of this controllers is to get information from sensors & run certain actuator. When getting any problem, then ECU shows a check engine light in engine display.
Types Of Sensors
Types Of Sensors 1- Engine coolant temperature sensor 2- Air temperature sensor 3- Manifold absolute pressure sensor 4- Mass air flow sensor 5- Idle air controller 6- Crankshaft sensor 7- Camshaft sensor 8- Throttle position sensor 9- Oxygen sensor 10- Knock sensor
Engine Coolant Temperature Sensor
Its function is to instruct radiator fan to turn on and cooling down the liquid after getting temperature above 75 degree. Its is usually located at the bottom of radiator or top radiator hose towards engine block. Function
Air Temperature Sensor
Function Air temperature sensor tells temperature of air going into engine. It is usually located in air filter box or pipe that is attached to the air filter box.
Manifold Absolute Pressure Sensor
Function This sensor measures air pressure which tells ECM the current altitude of a vehicle. It is bolted on the intake manifold or linked with a vacuum pipe from intake manifold.
Mass Air Flow Sensor
Uses This type of sensor measures the volume of air entering into engine. It produces more current to keep temperature required by the manufacturer, it is located on air cleaner box.
Idle Air Controller
Uses It works for keeping rpm of engine steady, it is an actuator not a sensor. It increases the rpm of car until the coolant temperature sensor indicates the high engine temperature .
Crank Shaft Sensor
Uses
Camshaft Sensor
The sensor contacts with ECM for position of camshaft, it is fixed at the end of camshaft. It is an electromagnetic sensor which produces voltage when a metal object moves past it. Uses
Throttle Position Sensor
This sensor is linked with accelerator pedal and the throttle body, sends information about injector pulse width Uses & spark timing. It is located in throttle body and it is not washable nor repairable.
Oxygen Sensor
Uses Of The Sensor It can detect the oxygen content so as to know about fuel amount consumed by the engine. There are two types of oxygen sensors, one is zirconia and another one is titania.
Knock Sensor
Uses This sensor contains a crystal & the crystal detects mechanical stress and produces a voltage when the car knocks. It also allows different grade fuel without any type of engine problem & it is fixed in engine body.
What Happens When Any sensor Fails
Sometime sensors get failed and do not function properly. When getting any type of problem in sensor, then immediately change the sensor or repair if possible.
http://www.jacksgermanauto.com/

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Engine control module

  • 2. Engine control module is known as power train control module or engine control unit
  • 4. Requirement The main function of this controllers is to get information from sensors & run certain actuator. When getting any problem, then ECU shows a check engine light in engine display.
  • 6. Types Of Sensors 1- Engine coolant temperature sensor 2- Air temperature sensor 3- Manifold absolute pressure sensor 4- Mass air flow sensor 5- Idle air controller 6- Crankshaft sensor 7- Camshaft sensor 8- Throttle position sensor 9- Oxygen sensor 10- Knock sensor
  • 8. Its function is to instruct radiator fan to turn on and cooling down the liquid after getting temperature above 75 degree. Its is usually located at the bottom of radiator or top radiator hose towards engine block. Function
  • 10. Function Air temperature sensor tells temperature of air going into engine. It is usually located in air filter box or pipe that is attached to the air filter box.
  • 12. Function This sensor measures air pressure which tells ECM the current altitude of a vehicle. It is bolted on the intake manifold or linked with a vacuum pipe from intake manifold.
  • 13. Mass Air Flow Sensor
  • 14. Uses This type of sensor measures the volume of air entering into engine. It produces more current to keep temperature required by the manufacturer, it is located on air cleaner box.
  • 16. Uses It works for keeping rpm of engine steady, it is an actuator not a sensor. It increases the rpm of car until the coolant temperature sensor indicates the high engine temperature .
  • 18. Uses
  • 20. The sensor contacts with ECM for position of camshaft, it is fixed at the end of camshaft. It is an electromagnetic sensor which produces voltage when a metal object moves past it. Uses
  • 22. This sensor is linked with accelerator pedal and the throttle body, sends information about injector pulse width Uses & spark timing. It is located in throttle body and it is not washable nor repairable.
  • 24. Uses Of The Sensor It can detect the oxygen content so as to know about fuel amount consumed by the engine. There are two types of oxygen sensors, one is zirconia and another one is titania.
  • 26. Uses This sensor contains a crystal & the crystal detects mechanical stress and produces a voltage when the car knocks. It also allows different grade fuel without any type of engine problem & it is fixed in engine body.
  • 27. What Happens When Any sensor Fails
  • 28. Sometime sensors get failed and do not function properly. When getting any type of problem in sensor, then immediately change the sensor or repair if possible.