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)
Or, hide this message:
temporarily or
permanently
Air Temperature Sensor ( Ambient / Intake ): Description and Operation
10 C The
MAT sensor is a thermistor mounted in the intake manifold. Low intake air temperature produces a high resistance, while high intake air resistance produces low resistance. The ECM supplies a 5 volt signal to the sensor through a resistor and measures the voltage. By measuring the voltage, the ECM can determine
MAT.