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Discussion Starter #1
So I scanned my car today and am curious as to what this code is showing and how it is effecting my car.

U0100 Mass or Volume Air Flow Circuit Malfunction

the MIL is on too!

Thanks
 

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Discussion Starter #3
Reading Topic: U0100!!

i will check it. i had to take out my CAI and I thought i put everything back okay. i wonder if it shimmied loose. we will see. thanks.

im on the way to get the car updated be back soon :)
 

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2003 Mazda 6s
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According to the scanner it is a generic code. I got it for "Lost Communication With ECM/PCM "A" ".
 
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