[hawk2100n]

Also seeing that the OP has a 5th gen civic as his avatar it is important to note that he likely is running the speed-density which uses a combination of the MAP sensor and intake air temperature to estimate the airflow into the engine in his setup. This type of fuel injection system was standard on Hondas until the 7th gen Civics as far as I know.

I built a FI system from the ground up for a single cylinder engine. It ran off of a TPS for load calculations because the MAP readings were transient and you couldn't get consistent data because of the sharp intake pulses. The TPS worked great best for my application and that thing screamed. But there was also a throttle acceleration which looked at the rate of change of the throttle and above 20% per second rate of change it would increase the fuel by some amount so the engine wouldnt bog. I threw a lot at it so we had snappy throttle response but we were racing so consumption wasn't an issue. But I had a ritch spot in my O2 data where you could tell when the driver got on the throttle. Modern cars are better but I always roll on the throttle slowly. You can actually see puffs of black smoke in modern gasoline cars when people romp on the throttle. Look for someone who is impatient in traffic and you will see it.