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Wiring Harness

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2:30 p.m.: Wiring is the second longest part of the installation, and some of that includes time to actually read the instructions. There are a lot of capabilities built into the Atomic EFI system, such as turning two engine electric fans on and off and an air conditioning idle kick-up circuit. The latter could be hooked up to a toggle switch to create a high idle on-demand for winching. Determine what you will need for your application, and pay careful attention to the connections marked “required” in the directions.