LX470 — NEW FEATURES 26 2) Mass Air Flow Meter The mass air flow meter, which is a slot-in, allows a portion of the intake air to flow through the detection area. It has been made more compact and lightweight than on the plug-in type. However, the basic operation and construction are same as the plug-in type. This mass air flow meter has a built-in intake air temperature sensor. Air Flow Intake Air Temp. Sensor ’06 LX470 (Slot-in Type) 273GX15 Air Flow Intake Air Temp. Sensor ’05 LX470 (Plug-in Type) 273GX16