LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Plymouth >> 1990 >> Colt Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests - PFI >> Fuel System >> Fuel Control >> Fuel Injectors
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fuel Injectors

  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, 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.
scientia non olet · About LEMON Manuals