LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 1996 >> Probe GT, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests - EEC (2.5L) >> Fuel System >> Fuel System Testing >> Fuel Injector Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fuel Injector Test

  1. With engine idling or cranking (no start), use stethoscope to listen for consistent, operational sounds (clicking) coming from each injector. If operational sounds are present, go to FUEL INJECTOR LEAKAGE TEST  . If operational sounds are not present, go to next step.
  2. Disconnect fuel injector connector and install injector test light (noid light) into injector connector. Start or crank engine. Observe whether light blinks, indicating completed circuit for injector being tested. Repeat test for each injector. If injector circuits check okay, go to next step. If any circuit fails test, turn ignition on. Check for 12 volts at each injector connector. If 12 volts are present at each injector connector, go to next step. If 12 volts is not present at each connector, repair wiring as necessary.
  3. Using DVOM, check injector resistance. Replace injector if resistance is not about 12-16 ohms at 68°F (20°C). If injector resistance is okay, go to FUEL INJECTOR LEAKAGE TEST  .
scientia non olet · About LEMON Manuals