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tachometer problem

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  • BITE_ME
    replied
    Originally posted by birretta68 View Post
    since we installed the efi pro flo 4 on our amc 401 the tachometer doesen't work properly ....... if we connect same to the ecu cable doesen't give any sign of life, viceversa if we connect same to the coil it works but then if u turn off the engine it continues running ..... anybody knows how to tacle the problem ..?
    You need to post a diagram of what you have, and how you are wiring it.

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  • 2700 Cast
    replied
    You 12v power backfeeding the PF4 .
    Disconnect anything aftermarket to PF4 1st----does it shut off ?

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  • birretta68
    started a topic tachometer problem

    tachometer problem

    since we installed the efi pro flo 4 on our amc 401 the tachometer doesen't work properly ....... if we connect same to the ecu cable doesen't give any sign of life, viceversa if we connect same to the coil it works but then if u turn off the engine it continues running ..... anybody knows how to tacle the problem ..?
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