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How do I connect a Tachometer to a GM LS1-LS7 engine’s ECU?

Please view the diagram below for more information on how to connect a Speedhut Tachometer to an LS ECU.

How do I connect a Tachometer to a GM LS1-LS7 engine’s ECU? Setup the Tachometer to run 2 pulses per rev when connecting it to the engines' ECU.

Setup the Tachometer to run 2 pulses per rev when connecting it to the engines' ECU.

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