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Fuel Injector Circuit

Disconnect all injector harness connectors. Using digital ohmmeter, check resistance across terminals of each injector. See the INDIVIDUAL INJECTOR RESISTANCE  table. Repair any injector not within specifications.

INDIVIDUAL INJECTOR RESISTANCE (1)

Engine Ohms
3.0L 11-18
4.0L 12-19
(1) Resistance values are for a single injector.
NOTE: For further component testing and information, see TESTS W/CODES - EEC-IV article in this section.