Hello. I have a question. I'm guessing that these Trailblazers don't have a mass air flow sensor? I have cleaned my throttle body out, and was trying to figure out where the Mass air flow sensor was so I could clean it as well. All I see is the IAT sensor that is between the throttle body and the air intake tube. Is this cleanable? Or is it not meant to be cleaned, if so what do I clean it with? and I am guessing that these things instead of a Mass air flow sensor have a MAP sensor that sits on top of the engine. Is that cleanable or not? Thanks, and I hope that I made some sense 
