Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
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temporarily or
permanently
Air Temperature Sensor ( Ambient / Intake ): Description and Operation
Located on the air cleaner, this sensor measures the temperature of the intake air and converts its change into that in resistance through the thermistor like the ECT sensor.
By monitoring the resistance of the IAT sensor, ECM detects the intake air temperature and use it as one of the signals to control fuel injectors and ignition timing.
