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Mass Airflow Sensor with Intake Air Temperature Sensor Replacement

WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Mass Airflow Sensor with Intake Air Temperature Sensor
GM2208531Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Mass Airflow Sensor Fastener (Qty: 2)
CAUTION: Refer to Fastener Caution .

Tighten:  4 N.m (35 lb in)

2 Mass Airflow Sensor
Procedure: 
Disconnect the electrical connector.