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brandon...all those values that youre seeing is all your type of language...i believe that they are how the pcm is interpretting what the vehicles sensors are telling it...the big time tuner guys would be able to give you a better idea.
your CAI isnt throwing that code...chances are the sensor is f-ed. its a thermistor and its going to be relatively easy to change, and shouldnt be too expensive. -38 means that the sensor is f-ed up as has already been stated...i'm not sure if GM uses PTC thermistors (temp up, resistance up) or NTC thermistors (temp up, resistance down)...but regardless, there is either too much resistance there or not quite enough. Make a movie with this scan tool of yours, then review it. Look at not only the IAT pid in degrees, but look at IAT voltage as well. I'm willing to bet its either 0 or close to 5 volts, meaning that a. youve got a short to power, an open, or the thermistor is just shot...it does happen.
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87 iroc with the usual go fast stuff
heavier than your half ton.
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