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Home >> Ford >> 1991 >> Bronco 5.8 H >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Fuel System >> Fuel Control >> Injector Circuit
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Injector Circuit

  1. Disconnect all injector harness connectors. Using digital ohmmeter, check resistance across terminals of each injector. See appropriate INJECTOR RESISTANCE table.
  2. Disconnect injector bank harness connector, and check resistance of injector bank. See INJECTOR BANK RESISTANCE . Repair wiring or replace any injector circuit not within specification.
INDIVIDUAL INJECTOR RESISTANCE

Engine Ohms
2.3L & 3.0L 15.0-18.0
All Others 13.0-16.0
INJECTOR BANK RESISTANCE

Engine Ohms
2.3L 7.0-9.5
2.9L, 3.0L & 4.9L 5.0-6.5
5.0L, 5.8L & 7.5L 3.0-4.0
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