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How many pins are supposed to be hot in the fuel pump connector 1990 bronco II?
Wiki User
∙ 16y ago
one, But it will not be "hot" just because the key is on, The ECM comtrols it, So it will only be hot for A second when the key is turned on then again after motor is running. If you are trying to test the power supply, You need help, use A test light disconnect the connector, Have someone crank the motor while you test the terminals, only crank for A couple of seconds at A time, You don't want to burn the starter up.
Wiki User
∙ 16y ago
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