23 April 2017

Disadvantages of electronic fuel injection

Replacing carburettors with electronic fuel injection (EFI) for delivery of fuel on engines has numerous advantages. However, for each engine installation, achieving these benefits requires a comprehensive integration and calibration. The spark-ignition engine with an electronic fuel injection system compared with a carburettor unit have the following unfavourable points too. 

Disadvantages of electronic fuel injection : 

  • High maintenance cost.
  • Possibility of malfunction of some sensors.
  • Difficulty in servicing.
  • Complex design.
  • Chances of developing leakage at the valve seat. 
  • Injection pressure needed 200 to 300 bar.