The air intake sensor on all vehicles records the air temperature and the air density. When the outside air flows across the air intake sensor, the sensor records the air temperature and density and sends both readings to the car's main computer. This allows the computer to either increase or decrease the fuel flow to the fuel injectors. The computer makes the decision based on the density of the air.
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Things you need
- Flathead screwdriver
Park the car on a level surface and set the parking brake.
Open the bonnet and lock the hood in place. Take the flashlight and locate the air filter housing. The air filter housing is a square box that is located on either the driver side or the passenger side of the engine. The air filter housing also has a round plastic tube coming out of the end of the air filter housing. This round tube is the air intake tube.
Inspect the tops and sides of the air filter housing for the air temperature sensor. Also inspect the big round tube that is coming out of the end of the air filter housing. The air temperature sensor will be a small black plastic plug that is plugged into the housing or the tube. The sensor also has wires coming out of the back of the sensor. The air temperature sensor can generally be found coming out of the air filter housing itself.
Tips and warnings
- The air temperature sensor will be the only plug with wires that is coming out of the air filter housing.
- Make sure the hood is locked in place. Serious injury can result from a falling hood.
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