Air Fuel Controller - AFC 1.2

The AFC 1.2 is a microprocessor based, stand-alone air fuel mixture management device for frequency-based Mass Air Flow (MAF) sensors. The AFC performs this fuel mixture correction by receiving the MAF sensor’s frequency signal, digitally recalculating a modified MAF frequency value and passing this modified frequency to the Powertrain Control Module (PCM). The AFC can apply correction values from 1% to 255% in 1% increments. The AFC – Version 1.2 applies this single correction factor to the entire frequency range (air flow range) of the MAF sensor. The AFC‘s operational frequency range is from 500 Hz to over 30,000 Hz. As a result, the AFC allows the operator to lean out or richen the Air Fuel mixture simply by changing the correction value setting on the device. How does the AFC accomplish this? When setting a correction value less than 100% will cause the PCM to perceive less air entering the engine and responds by commanding less fuel be delivered to the engine. Thus, AFC values le