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Hi jc, the factory air flow meter has an air temp sensor built in to provide the dme with ambient air temperature information allowing the dme to trim the ignition timing accordingly. However, due to the Autothority MAF sensor's lack of a temp sensor, the MAF system is programmed to operate under the fixed assumption that the ambient temperature is ~70 degrees. The hot wire does not compensate this ignition adjustment because it's only purpose is to adjust the fuel mixtures based on air density. Your solution is very interesting as there is another Pelican member - Randal Jacoby trying to combat this very problem you are having as he lives in Phoenix, Arizona and regularly drives in 120 degree heat. I'll email you for further details.
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