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Old 07-14-2017, 08:35 AM   #2 (permalink)
Daox
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Join Date: Dec 2007
Location: Germantown, WI
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CM400E - '81 Honda CM400E
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OEMs use intake air temperature to control the fuel injection and ignition timing on the engine. The Scangauge gives you access to any sensor that the ECU has available. You can use the intake air temperature for troubleshooting (bad sensor, short in the wiring, etc), or you can use it for monitoring a fuel economy modification like a warm air intake, or performance modification like a cold air intake.
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