2003 Hyundai Tiburon Check Engine light

Engine Mechanical problem
2003 Hyundai Tiburon 6 cyl Front Wheel Drive Automatic

My check engine light came on. The Mass air flow sensor was bad and I replaced it. The check engine light never came back on. I have a cold air intake on my car. After I installed the new mass air flow sensor I drove the car around a little bit and no problems. It is about 20 degrees outside. I decided to gun it to see if everything was ok. At 4000 rpms the check engine light came on. I took it to auto zone and the said it was the mafs. I erased the code and started the car up twice and the Check engine light never came back on. Did it come on because of to much cold air going into the engine?