Mass Air Flow Sensor

2002 NISSAN ALTIMA
108,000 MILES
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VARGASN
  • MEMBER
  • 3 POSTS
My husband is constantly changing the mass air flow sensor every three months. Sometimes we get an engine code and other times we don't. We are thiinking that may be it is something else.
Apr 29, 2013 at 10:58 PM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
MAF do not go bad every 3 months. I believe the wire harness needs to be checked.
Apr 30, 2013 at 12:07 AM
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VARGASN
  • MEMBER
  • 3 POSTS
is that the harness connected to the mass air flow sensor.
Apr 30, 2013 at 12:31 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Yes, the connector that plugs into the MAF should be checked for damage. Its continuity to the engine computer should be tested. The problem might even be caused by the computer.
Any vacuum leakages can cause MAF problems and so do other trouble codesif any are present.
Apr 30, 2013 at 9:42 AM
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