disconnect the battery, change the sensor, connect the battery back and start the car, the car will idle a little high for a second untill it learns the new sensor, and you are done.
Any sensor you replace from your car you want to have the computer relearn it so that the sensor can work properly, any sensor like , O2 sensor, IAT sensor, IAC sensor, EGR sensor, MAP sensor, crank sensor, tps sensor you want to disconnect the battery before you change any of them.
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