This intake air temperature sensor is mounted on top of the inlet manifold and plays a vital role in engine management. By measuring the temperature of incoming air, it helps the ECU determine the correct fuel injection amount—cold, dense air requires more fuel, while warm, less dense air needs less.

In addition to fuel control, the sensor data allows the ECU to adjust spark timing, helping prevent issues like pre-ignition and ensuring efficient combustion. It's a key component for maintaining optimal engine performance and fuel economy.

To fit:

Boxster (986) 1997-2002

911 (996) C2, C4, C4S 1998-2005

911 (996) Turbo 2001-2002

911 (996) GT3 2000-2001