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I don't know what kind of car this is because you did not specify,however the iat is prbably not hooked up this will cause the mil light to iluminate and if that's all you've done than if that is the proble than it will reset itself,if it is hooked up than try removing the battery cables for about 5 min you can also hold the pos and neg cables together for 30 second this will drain the capacitors in the ecm.sorry the iat is the intake air temp sensor its a two wire thermistor sensor.

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โˆ™ 2011-09-12 22:35:06
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Q: I just had an aem cold air intake system installed and the engine light is on. How can I reset it?
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