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Home >> Ford >> 1991 >> Probe LX, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures >> Fuel System >> Fuel Injectors >> Fuel Injector Circuit
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Fuel Injector Circuit

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

INDIVIDUAL INJECTOR RESISTANCE (1)

Engine Ohms
2.3L OHC/3.0L 15.0-18.0
All Others 13.0-16.0
(1) Resistance values are for a single injector.
INJECTOR BANK RESISTANCE

Engine Ohms
2.3L HSC 6.0-8.0
2.3L OHC 7.0-9.5
3.0L 5.0-6.5
NOTE: For further component testing and information, see appropriate TESTS W/CODES article in this section.
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