Cleaning May Correct Faulty Mass Air Flow Sensor on Toyota Sienna

The mass air flow sensor on higher mileage cars occasionally needs to be cleaned or replaced if sluggish acceleration is experienced or the Check Engine Light is illuminated with a mass air flow meter sensor fault code stored.

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Average mileage: 112,000 (82,000–140,000)
Engines affected: 3.0L V6, 3.3L V6
7 model years affected: 1998, 1999, 2000, 2001, more2002, 2003, 2004
14 people reported this problem
5 people shared problem details
2001 Toyota Sienna- 3.0L V691,000
I had check engine light coming on. They told me to replace catalytic converter but I was getting the check light indicator the Midas people told me to replace o2 sensor, with no luck. Now they told me to replace mass air flow sensors. I have spent almost 2000 USD. I will NEVER BUY A TOYOTA SIENNA AGAIN.
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2000 Toyota Sienna- 3.0L V6135,000
the engine light stays on and sometimes blinks. MPG seems to stay the same at 20 MPG. replaced coils and plugs with no change
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2002 Toyota Sienna- 3.0L V682,000
Changed Air Filter (not from Toyota but quite similar) and Check engine light went on in 15 minutes of driving. Code: Engine running lean. Need to clean MAF. I will buy the MAF sensor cleaner today.
1 person likes thisFlag inappropiate
2004 Toyota Sienna- 3.3L V6
My check engine light is on and when I used the code reader it stated that it's the massive air flow sensor, but I replaced that it and it still doesn't work.
2001 Toyota Sienna- 3.0L V6140,000
Check engine light was on. Disconnect battery and drive car about 50 miles before it would pass inspection (emission standard). Finally took it to dealer. Cleaned MAF. Light is off but only driven 25 miles thus far.
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