How Do You Change A Pontiac Mass Airflow Sensor?
The mass air flow sensor in the Pontiac GM engine is placed between the air box duct and the throttle body of the engine. Depending on the type of Pontiac you have, there are a couple of different procedures to remove and replace it. Mass air flow sensors can build up air particulates, which contaminate the sensor screen and cause poor performance of the engine. If you’re replacing one, you already know they’re expensive and you should go a step further and clean out the air intake system and change the air filter as well. Locate the air box in the engine compartment of the Pontiac. Remove the cover and then remove the filter. On 3.1-liter and 3.4-liter motors–in the Aztec and Montana–it might be easier to disconnect the air duct using a screwdriver to loosen the band clamps and then remove the air duct before taking the air box cover off. Use a shop vac to clean out the bottom of the air box if there is debris or accumulated dust present. You can also spray some throttle body cleane
