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Cadillac Technician
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Usually the IAT code sets because someone checked your air filter and left the connector unplugged.
I think you are looking at the MAF sensor, that would cost 214 bucks.
Of course I am a little foggy on wha kind of car we are talking about so I can't say more than that really.
 

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Cadillac Technician
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11,050 Posts
Just because a code comes up doesn't mean that component is bad.
There are many things that can cause the PCM to set a MAF code.
I'd spend some effort diagnosing the car before throwing a 200 dollar part at it. Try clearing the code a few times and see if the same one comes back for starters.
 
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