Originally posted by 00-To-Sweet-Celica:what does a Apex-i SAFC do
APEX DIGITAL SUPER AFC
Piggyback Fuel Computer
Modifies air-flow meter signal (pressure signal in some vehicles) to optimize fuel-air ratio; Vacuum Fluorescent Display (VFD).
The second-generation S-AFC is a fuel computer that adjusts fuel/air ratio by modifying the air-flow meter/MAP sensor signal. The S-AFC features a user-definable, eight-point, adjustable fuel curve that can be set in 500 RPM increments. The range of fuel adjustment is +/- 50% at each of the user-defined setting points. On hot-wire vehicles, the Deceleration Air Flow Correction function is capable of curing the erratic idle and stall problems associated with open-atmosphere blow-off valves on hot-wire air-flow meter systems. The S-AFC is capable of monitoring and replaying the following data channels in Numerical, Analog Meter and Graph displays: Intake
Manifold Vacuum/Boost Pressure, Air Flow Capacity, Intake
Manifold Pressure, Karmann Frequency, Engine RPM, Throttle Position, and Air Flow Correction %.