i just put a cold air intake on my truck and had to add the maf sensor into the new piece of pipe and now my check engine light has come on. the truck runs perfectly fine, not really much better than with the stock filter really. i unpugged the maf sensor and the truck seemed to run just fine still so does anybody have any ideas what could have caused the sheck engine light to come on?

 

did you have the sensor plugged all the way in?