Fuel Injectors & Pumps

Section 8.2 Series 50/60 Faulty Fuel Injector Test

Section 8.2
Series 50/60 Faulty Fuel Injector Test

Perform the following steps for servicing faulty fuel injector assembly(s):‪

  1. Remove and replace injector assembly(s) whose pulse width values are within 0.2 degrees of the NO CUTOUT PULSE WIDTH.
  2. Verify replaced injector assembly(s).

Perform the following steps to verify if the replaced fuel injector(s) resolved the misfiring cylinder condition: ‪

  1. Start the engine.
  2. Run the engine speed up to the occurrence of the misfiring.
  3. Listen for misfiring cylinder.
  4. If the engine is not misfiring, shut down the engine. No further troubleshooting is required.
  5. If the engine is misfiring, shut down the engine and check for a faulty electronic control module.


Unit Fuel Injectors and Unit Pumps Technician's Guide - 7SE500
Generated on 10-13-2008

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