Engine Kill Switch (where to put it)
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Northstar Engines and System Technical Discussion Discussion, Engine Kill Switch (where to put it) in Cadillac Engine Technical Discussion; I had asked a few months ago, but didn't get an answer about where to put the engine kill switch ...
  1. #1
    bigds01 is offline Cadillac Owners Fanatic
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    Engine Kill Switch (where to put it)

    I had asked a few months ago, but didn't get an answer about where to put the engine kill switch on the 94 seville. I have a heavy duty engine kill switch that I want to install this weekend. What is the best electrical line to install it in to kill the car, but when it gets turned back on the car will go?

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    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: Engine Kill Switch (where to put it)

    The car already has an anti theft system from the factory. With all the electronics in the car I'm not sure I'd want to mess with that, but if you insist, you might look at the wiring schematic in the FSM and tap into one of the ICM feed lines.

  4. #3
    eyekandyboats.inc's Avatar
    eyekandyboats.inc is offline Cadillac Owners Connoisseur
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    Re: Engine Kill Switch (where to put it)

    i was helping a buddy do a kill switch for his mazda in a derby car, and like you they need it mouned in a spot where you can acess it,
    well he just used the primary wire off the coil pack, our cars have it as well. maybe tap into that are use the switch to kick it off.

  5. #4
    bigds01 is offline Cadillac Owners Fanatic
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    Re: Engine Kill Switch (where to put it)

    To be clear, it is a requirement of the race that we have a fully functional kill switch. I think tapping into the coil pack kills the engine not all of the electronics.

    Any other ideas? Really can use help on this.

  6. #5
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: Engine Kill Switch (where to put it)

    Sorry, I thought this was a security thing. You are correct, that would only kill the ignition. How about where the power is brought into the fuse box?

  7. #6
    bigds01 is offline Cadillac Owners Fanatic
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    Re: Engine Kill Switch (where to put it)

    Would that fry the electronics?

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    Ranger's Avatar
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    Re: Engine Kill Switch (where to put it)

    What kind of switch are you talking about? I'm envisioning something like a toggle switch that simply opens the circuit.

  9. #8
    bigds01 is offline Cadillac Owners Fanatic
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    Re: Engine Kill Switch (where to put it)

    Standard heavy duty engine kill racing switch. The one that you turn clockwise to close the circuit.

  10. #9
    Ranger's Avatar
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    Re: Engine Kill Switch (where to put it)

    Don't know much about that so I'll just shut up now.

  11. #10
    Submariner409's Avatar
    Submariner409 is offline If it won't run, slap in a big stereo
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    Re: Engine Kill Switch (where to put it)

    Sawed-off 12 gauge double on the dashboard ???

    How many poles and what size wire does this switch accommodate ???

    Do the rules require a battery and ignition kill switch combined, or can you tap into the PCM injector/ignition trigger circuits - these electronic control engines are different from a good ol" distributor..

  12. #11
    bigds01 is offline Cadillac Owners Fanatic
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    Re: Engine Kill Switch (where to put it)

    I bought a four pole. Here is the rule:

    3.23: Master Electrical Kill Switch: All cars must have a racing-type master electrical kill switch. The control for this switch should be red; the OFF position should be clearly indicated; the switch should be easily accessible from outside the car; and the switch should be clearly marked by a three-inch or larger lightning-bolt symbol. Both the main battery circuit and the ignition circuit must be interrupted by the kill switch (if you don't do that, the engine may still run off the alternator even after the battery circuit is disconnected). The switch should be located on the cowl; or on the outside edge of the dash near the driver's-side window opening; or on the deck at the base of the rear windshield. Don't put the switch where it's likely to be hit by another car in traffic or crushed in an accident.

  13. #12
    Submariner409's Avatar
    Submariner409 is offline If it won't run, slap in a big stereo
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    Re: Engine Kill Switch (where to put it)

    It sounds like two poles go to the battery positive cable and the other two (smaller ?) poles are used, in your car, to shut down PCM or IGN power. Because this (IGN) is at the underhood fuse box, then both the main battery cable and IGN can be tapped into right there.

    "on the cowl" would be at the base of the windshield, passenger side (?) next to the w/s wiper base. This gives you the shortest extra wire run.

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