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Toyota Corolla Cleaning May Correct Faulty Mass Air Flow Sensor

 
Toyota Corolla Problem
44 Reports
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Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

Engine Affected: 1.8L 4 Cylinder

Average Mileage: 103,588 mi (30,000 mi - 196,000 mi)

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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.

  •  Rookie

    Engine has low power, and does not accelerate. Hesitates at times. Engine light is on. Sometimes engine stops running when slowing down or stopping on intersections. Sometimes it would run but RPM is steady at 1,000 to 2,000 RPM's and at 10-20 miles per hour speed, until you restart the engine and it would run normal again for sometime.
    1. Cleaned MAF sensor: did not fix the problem
    2. How to make sure that MAF sensor is faulty and need to be replaced?
    3. Any recommendation?

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  • , , 69,000 mi

    Engine has low power, and does not accelerate. Hesitates at times. Engine light is on. Sometimes engine stops running when slowing down or stopping on intersections. Sometimes it would run but RPM is steady at 1,000 to 2,000 RPM's and at 10-20 miles per hour speed, until you restart the engine and it would run normal again for sometime.
    Looking for suggestions to resolve this problem.
    Cleaning MAF Sensor didn't fix it. How to make sure that MAF sensor is faulty and need a replacement?

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  • , , 1.8L 4 Cylinder

    MY CHECK ENGINE DASHBOARD LIGHT CAME ON YESTERDAY. HAVE NOT EXPERIENCED ANY DIFFICULTIES THOUGH. PRAY THE light just goes out. At lease that I can pay for. :-).

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  • , , 1.8L 4 Cylinder, 100,000 mi

    Sluggish acceleration while driving and starting in the morning. Removed and cleaned MAF and ran like new.

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  • , , 1.8L 4 Cylinder, 50,000 mi

    Mass air flow sensor was bad. Lean condition bank1 code. replaced sensor. Happened again about 4 years later.

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  • , , 110,000 mi

    Check engine light came on. Mechanic "found internal short of mass air flow sensor." Replaced. Car had been idling high and had increased gas consumption.

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  • , , 1.8L 4 Cylinder, 85,000 mi

    The Check Engine light came on with MAS and Bank 1 too rich trouble codes being reported I cleaned the MAS with just canned air and the problem went away for three weeks before triggering the Check Engine light again. I am wondering if the OEM air filter that was installed about 3000 miles ago is defective and restricting the airflow so I just changed it out. I am also wondering if there may be some particles being released from the secondary charcoal air filter that may be collecting on the MAS wires that is causing a recurrance of the check engine light. I will be waiting to see if the light comes back on any time soon.

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  • , , 168,000 mi

    hesitant acceleration and high RPM in 1st 2nd gear running rough until 3rd gear have tranny fluid changed on friday may clean or replace my MAS and hope it works

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  • , , 130,000 mi

    Shortages water in the cooling system

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  • cooling fan keep run when i turn key on

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