MEFI Fuel Injection
IAFM TMAP Sensor
Combination MAP and IAT
This IAFM T/MAP sensor is used on the MPI 4.3L, 5.0L and 5.7L engines. The “T” in T/MAP stands for temperature. This sensor measures barometric pressure, intake manifold pressure and intake manifold air temperature. This sensor is a four wire sensor, using the additional wire for the manifold or intake air temperature signal (MAT or IAT). The IAT shares the sensor return or ground with the MAP. The thermistor for intake air temperature measurement is pictured above. It is yellow in color. See the Intake Air Temperature sensor section for it’s operation.
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