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Injector Circuit

  1. Disconnect all injector harness connectors. Using a DVOM, check resistance across terminals of each injector. See INDIVIDUAL INJECTOR RESISTANCE .
  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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