Why is my injectors spraying fuel even if I'm not turning over the engine

Asked by Thomas Nov 26, 2015 at 07:49 AM about the 1990 Chevrolet S-10 Tahoe RWD

Question type: Maintenance & Repair

3 Answers
1,290

tcarewzin answered 8 years ago

they should not be spraying with the engine not cranking, we control the the injectors with a ground inside the ecm (engine control module) the injectors always have power, a simple test would be to disconnect the ecm jump the fuel pump on and if they continue to spray the control wire is shorted to ground or the injector are stuck open, if it doesnt spray the ecm is no good

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20

Guru94F56R answered 4 years ago

Only one injector is spraying while the other three are not

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