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Thread: 5v square tach pulse?????

  1. 16th October 2009, 04:18 PM #1
    slideways
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    Default 5v square tach pulse?????

    Just got my new replacement igniter from EMS, and the new design doesn't have a tach output from the igniter.

    So how can i get a 5v square wave tach pulse from the igniter/4 bosch coils?
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  2. 16th October 2009, 04:23 PM #2
    Anthony
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    which ecu?
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  3. 16th October 2009, 04:37 PM #3
    slideways
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    stinger 4424 v.3 w/ 2 outputs both in use
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  4. 17th October 2009, 11:12 PM #4
    Skylar
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    link the 4 ignition outputs to one wire through diodes?
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  5. 19th October 2009, 11:18 AM #5
    slideways
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    This is what I thought, but wanted to make sure that it works. Also which diodes do I use?
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  6. 19th October 2009, 12:22 PM #6
    Skylar
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    1N4004 should be fine.
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