Practice question

A school bus diesel sets an injector circuit electrical fault for one cylinder. The technician should:

  1. Replace all injectors immediately
  2. Test the injector solenoid resistance and the wiring/connector for that cylinder before replacing the injector
  3. Replace the ECM first
  4. Replace the fuel filter and clear the code

Answer: B — Test the injector solenoid resistance and the wiring/connector for that cylinder before replacing the injector

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Practice more: ASE S2 Diesel Engines (School Bus) Practice Questions - ASE S2 - Diesel Engines (School Bus) Certification Exam →