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2005 X-Runner (Black
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188 Posts
Discussion Starter #1
My check engine light came on & when my brother scanned it it came up P0100 Mass Airflow. I took it over to the dealer. The air filter was clean as new with 9000 mi. on it so it might be a sensor. It runs fine. I'm waiting for a call from the service guy. Any guesses?:dunno:
 

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GO PATRIOTS!
2007 Tundra
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8,676 Posts
Did you try cleaning it? Take it out and clean it with electrical contact cleaner.
 

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848 Posts
If you use an oiled air filter that may be causing the problem.
 
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