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Diesel Fuel System

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On a diesel Electronically Controlled Fuel System, the ECU works in the same way as on a petrol electronically controlled fuel system, i.e. the data is sent into the ECU, then the ECU processes the information it was given and after making a judgement on how much fuel/air etc… to inject/ draw in etc…, it sends a signal to the appropriate systems. The Diesel Electronic Fuel System needs the sensors to send a signal to the ECU for the system to work efficiently and economically, the following things are monitored by sensors for the fuel system on a diesel engine:

  1. Injector Needle Motion
  2. Coolant Temperature
  3. Air Temperature
  4. Control Spool Position
  5. Air Mass
  6. Engine Speed
  7. Manifold Absolute Pressure (MAP)
  8. Vehicle Speed
  9. Accelerator Position

Image Copyright © Nicholas Seal. Do not copy.

 

 The Diesel Fuel System is laid out as follows:

Image Copyright © Nicholas Seal. Do not copy.

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