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Fuel pump & coils, injector switch (kill switch)

Dan Bloomfield

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If I have a switch between the relay and aux output as pictured, mainly used to immobilise fuel pump & coils/injectors using a factory unused dash switch with duel input/outputScreenshot_20210302_000135.jpg.0a8ba1e4a58ae94c5ffd376c9959692d.jpg

will I need to enable a pull up resistor due to lowside switching, if available on aux channel. Or will I need to use a digital channel insteed.. Xtreme+ 


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Wouldn't it be simpler to wire the switch into the ECU as a DI and then set it as antitheft or Stop Switch? This way the ECU wouldn't inject any fuel or trigger any spark when the switch is set to its disable position.

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