C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Switch signal for relay

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Old Aug 20, 2018 | 01:57 PM
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From: Acapulco Guerrero
Default Switch signal for relay

Hi,
please help me with this

Where can I took a 12v signal from switch for a relay ?
thanks in advance
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Old Aug 20, 2018 | 02:03 PM
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Why don’t you connect it (relay pin 86) to the same 12v source you are using for pin 30?

Are you turning the relay on with a switch grounding pin 85? If so, the way described above is best.
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Old Aug 20, 2018 | 06:30 PM
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From: Acapulco Guerrero
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Im connecting a wide band gauge
but this gauge send energy to heat the o2 sensor,
this gauges are sensible to volt variation
then want to connect directly to battery
but I need to find a source of switch signal
can be on engine bay or inside car
thanks in advance
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