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Home >> Mitsubishi >> 1990 >> Precis Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1 (Engine Controls - System/Component Tests - PFI) >> Fuel System >> Fuel Control >> Fuel Injectors
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Fuel Injectors

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1990 Mitsubishi Van, 1990 Mitsubishi Sigma, 1990 Mitsubishi Pickup, 1990 Mitsubishi Montero, and 1990 Mitsubishi Mirage. However, it is still accessible from the selected car via links, so may be relevant.
  1. Using a stethoscope, check operating sound of injector(s) during engine cranking or idling. If clicking sound is heard, injectors are okay. If clicking sound is not heard, go to step 2).
  2. Disconnect injector electrical connector. Measure resistance between injector connector terminals. At 68°F (20°C), if resistance is not within 13-16 ohms (all models except Eclipse 2.0L VIN U) or 2-3 ohms (Eclipse 2.0L VIN U), replace injector.
  3. If resistance is within specification, check injector wiring circuit for open or short to ground. If wiring circuit tests okay, replace injector.
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