Intake Manifold Vacuum/Boost Pressure
Air Flow
Intake Manifold Pressure
Karmann Frequency
Engine RPM
Throttle Position
Air Flow Correction %

Up to four of these parameters can be monitored in three different ways:

If monitored numerically, the user can see a peak hold value for the chosen parameter by pressing the up key.
If monitored in analog meter mode, up to two meters can be displayed at one time. By pressing the up key, the analog meters will hold the peak value. If under 3 or 4 channel mode, only the first two channels will be displayed.
If monitored in graphic display mode, the S-AFC can start "sampling" or memorizing data channels by pressing the up key. The memorized graph can then be replayed by pressing the right key. Anytime during replay by pressing the right key again, the display can be paused. To review any part of the memorized graph, the user can push the left key during replaying. Anytime during backwards replay, the left key can be pressed to pause the display.
If monitoring one channel, then the last 60 seconds can be replayed.
If monitoring two channels, then the last 30 seconds can be replayed.
If monitoring three channels, then the last 20 seconds can be replayed.
If monitoring four channels, then the last 15 seconds can be replayed.

Air Flow Usage
Intake Manifold Pressure
Karmann Frequency
Throttle Percentage %
Air Flow Correction

The 2D Trace Mode displays one user-selected parameter versus engine RPM. The horizontal scale being engine RPM and the vertical scale being the user-selected parameter. There are three ways to view the 2D Trace. One way is a simple cursor that floats around the screen showing what the user-selected value is. The second way to view the graph is with a 10 point floating trail to show the trend of the user-selected value. The third way is to view with a "Ghost Map" trace. The "Ghost Map" shows wherever the cursor has been and does not clear until the user clears the screen.

Setting Mode (Th-Point)
On this screen there are two values, Lo and Hi. Each value determines whether the Lo-Thrtl or Hi-Thrtl map will be used by the S-AFC for correction. If the Lo value is at 10% and the Hi value is at 50%, then the settings on the Lo-Throtl map will occur between 0 and 10% throttle position and the settings on the Hi-Throtl map will occur between 50 and 100%. If the throttle is between 10 and 50%, then the S-AFC will interpolate between the two values set on the Lo-Throttle and Hi-Throttle maps.
Generally, on Turbo vehicles the TH-Point setting can be left close to default or the values can closer together (i.e. Lo-Thrtl: 10 and Hi-Thrtl: 50). On normally aspirated vehicles where air flow and therefore horsepower is strictly dependent on throttle angle, these values can be set further apart (i.e. Lo-Thrtl: 15 and Hi-Thrtl: 80).

Etc. Mode (Car Select)
This screen allows the user to set the number of cylinders the engine has and what type of throttle position sensor the engine uses. Most Japanese vehicles use an ascending type (arrow pointing to the upper right hand corner) throttle position sensor. If you are unsure of what type of throttle position sensor your vehicle has, you can check the Etc. Mode (sensor check) screen. If your throttle sensor voltage goes from 0-5V when going from closed to open, then your throttle position sensor is an ascending type. If your throttle sensor voltage goes from 5-0V when going from closed to open, then your throttle position sensor is a descending type. If your vehicle does not use a throttle position sensor, then use the "**" selection.

Etc. Mode (Grph Scale)
This mode allows the setting of the maximum and minimum values to be displayed under the Monitor Mode's graph display mode, analog meter mode, and 2D Trace mode. The user can select the following scales:
Pr: Intake Pressure

Ne: Engine RPM
Cr: Air Flow % Correction
Etc. Mode (Sensor Check)
This mode will check the voltage of the pressure sensor, air flow meter, or hot wire meter. In-1 is the voltage of the first sensor, while In-2 is the voltage of the second sensor. In-2 will only be used on the Skyline GT-R and will almost never be used in the USA. If your vehicle has a Karmann type sensor, this sensor check screen will not be applicable to your vehicle. This function is to check if all connections have been properly connected after installation. Also if there is improper operation, this screen can be viewed to determine if any connections or sensors are bad.