Problem Reports

Toyota Corolla

Report: Cleaning May Correct Faulty Mass Air Flow Sensor

Toyota Corolla Problem

25 Reports

Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

Engine Affected: 1.8L 4 Cylinder

Average Mileage: 102,058 mi (50,000 mi - 191,636 mi)

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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Report #1

Visitor, 2001 Toyota Corolla, 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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Report #2

Visitor, 2002 Toyota Corolla, 1.8L 4 Cylinder, 117,500 mi
Report #3

Visitor, 2006 Toyota Corolla, 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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Report #4

Visitor, 2003 Toyota Corolla, 1.8L 4 Cylinder, 95,628 mi

Car extremely sluggish. Mass air flow sensor passages cleaned. Not as sluggish afterwards.

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Report #5

Visitor, 1999 Toyota Corolla, 1.8L 4 Cylinder, 191,636 mi
Report #6

Visitor, 2000 Toyota Corolla, 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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Report #7

Visitor, 2007 Toyota Corolla, 1.8L 4 Cylinder, 68,000 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.

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Report #8

Visitor, 2007 Toyota Corolla, 1.8L 4 Cylinder, 125,000 mi
Report #9

Visitor, 2000 Toyota Corolla, 1.8L 4 Cylinder
Report #10

Visitor, 2000 Toyota Corolla, 1.8L 4 Cylinder, 85,766 mi

First clean 6 months later replace the sensor

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Report #11

Visitor, 2006 Toyota Corolla, 1.8L 4 Cylinder

I haven't taken care of it yet, the cost they quoted me was $429.00. Too high.

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Report #12

Visitor, 2009 Toyota Corolla, 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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