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Home >> GMC >> 1992 >> Forward Control 7.4 N >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Fuel System (Gasoline) >> Fuel Control >> Fuel Injector(s)
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Fuel Injector(s)

Disconnect fuel injector harness connector. Measure resistance across injector terminals. Resistance should be as specified. See FUEL INJECTOR RESISTANCE  table.

FUEL INJECTOR RESISTANCE

Application (1) Resistance (Ohms)
3.1L (VIN D) 1.2
4.3L (VIN Z Turbo PFI) (2) 2.0
All Others 1.3
(1) Injector resistance specification is at 140°F (60°C).
(2) Minimum reading.