Practice question

A school bus diesel with a HEUI-style injection system has a no-start. The technician should verify:

  1. Tire pressure
  2. Adequate high-pressure oil (ICP) supply and pressure since HEUI injectors are actuated by engine oil pressure
  3. Cabin temperature
  4. Radio operation

Answer: B — Adequate high-pressure oil (ICP) supply and pressure since HEUI injectors are actuated by engine oil pressure

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