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View Full Version : What is the sensor by the air filter?


Turbo Trans Am
09-07-2004, 03:01 AM
I am installing a 9" cone filter and see that there is a sensor in the elbow between the MAF sensor and the stock filter? What is the sensor called and what is it's effect on our cars? Where should I insert it in my new setup, which is an ATR MAF pipe, MAF sensor, followed by 9" cone? Thanks!

Keller
09-07-2004, 03:20 PM
Its the MAT (Mass Air Temperature) sensor. It is used to detect temperature on startup, and that is all. On a cold (VERY cold - like sub-freezing) start, the ECM will command a high idle to aid with stall provention and warmup/

The sensor should either be put into a snug hole made in the base of the K&N (probably NOT the neck - would affect airflow) or just tied off somewhere else in the nearby area.