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Home >> Isuzu >> 1992 >> Impulse RS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Fuel System >> Fuel Control >> Fuel Injectors
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Fuel Injectors

  1. Unplug fuel injector harness at injector. Using ohmmeter, measure resistance across terminals. Replace fuel injectors if resistance is not within specification. See FUEL INJECTOR RESISTANCE SPECIFICATIONS  table.
  2. With engine running, check fuel injector operating noise. Normal operation of injectors is indicated if a regular "click" is heard, which varies with engine speed. If "click" is not heard, replace injector.
FUEL INJECTOR RESISTANCE SPECIFICATIONS

Application Ohms
Impulse
Non-Turbo Greater Than 1.2
Turbo 1.2-2.2
Stylus SOHC & DOHC Greater Than 2
NOTE: FUEL INJECTOR BALANCE TEST is also known as CHART C-2A.