Member Credit: Jasonmax
I’ve seen a lot of people asking about how to clean the MAF, so I decide to do my own and show it to them.
Things you need during the cleaning:
CRC MAF cleaner
Torx screwderiver #15
10mm wrench
Preparation:
Park your car under a shade or a place that isn’t dusty.
Disconnect the bettary using the 10mm wrench to avoid damaging the ECU.
Location:
The Mass Air Flow sensor is located on a tube between the engine filter box and the throttle filter.
Remove the MAF:
1. Clean the area around the MAF and blow away the dust on it.
2. Press the clip on the socket and pull upwards to dissconnect the MAF.
3. Unsrew to screws that hold the MAF using the Torx screwderiver #15. Pull the MAF upwards to remove from the housing. If it’s difficult to pull it out, twist the MAF 90 degree, so you can pull it out with your both hands.
4. Remove the MAF carefully from the housing and make sure you don’t drop it. Clean the housing and cover it with a damp towel to prevent dust getting in.
Clean the MAF:
1. A MAF has two air tunnels on it, so you have to clean both of them.
( red arrows show how air flows through the MAF)
Only 5.5th gen has this intake air temp sensor, 5th gen has seperated one.
2. Take you MAF cleaner and put the pipe on it, so you can reach small areas. When you clean the MAF, DO NOT touch anything in side the tunnel with the pipe because that can damage the sensor.
3. Keep blowing the cleaner for 2-3 seconds to each tunnel, and you can also clean the resistor at the same time. After cleaning the MAF, let it sit for 15 minutes to dry. I prefer to put it like this, so dust won’t get in.
Reinstall:
When you put the MAF back, just make sure the air flow direction is correct, with two tunnels/holes facing to the air filter.
Relearn procedure:
After putting the MAF back to the car, perform the ECU reset and Idle relearn procedures.
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