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Home >> GMC >> 1990 >> Magnavan 5.7 K, 3L80/M40 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Fuel System (Gasoline) >> 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)
All Except 3.1L (VIN D) 1.3
3.1L (VIN D) 1.2
(1) Injector resistance specification is at 140°F (60°C).
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