Basic Introduction to the SFC-VTEC

1) Mode Switch

Depending on how long you depress this switch, you can change the display information, or change modes.

Switch Definitions

Short Hold - ( < 0.5 seconds )
Long Hold - ( 0.5 ~ 2.0 seconds )
Continued Hold- ( > 2.0 seconds )

"Realtime Mode" (MODE switch lights up green)

Short Hold - (Switch to "Setting Mode")
Long Hold - (Change functions within "Realtime Mode")
Continued Hold - (Returns to normal)

"Setting Mode" (MODE switch lights up green)

Used only to adjust SFC Functions, the MODE switch will move your fuel mapping to the next RPM level.
After adjusting the 8000RPM mark, it will return you to "Realtime Mode"

2) Hi-cam Status

Once you pass your pre-set Hi-cam setting point (VTEC / MIVEC switchover), the display will turn red.

HI-CAM

->

HI-CAM

This function will work regardless of what mode you're in.

3) Mode Status

This display will show you what mode you're in:

SFC = SFC Mode (Fuel delivery control)
VTC = VTEC Mode (Hi-cam changeover control)
SPD = Speedometer Mode

4) Center Display

It will display different things depending on what mode you're in:

SFC Mode

Fuel control increases and decreases in real-time, or current fuel delivery settings

VTEC Mode

Tachometer display, or current Hi-cam switchover setting.

Speedometer

Will display your current speed up to 999km/h.

5) Up Button (used only during "Setting Mode")

SFC Mode

Will increase fuel delivery in 1% increments (maximum +30%)

VTEC Mode

Will increase the Hi-cam switchover point in 100 RPM increments.

6) Down Button (used only during "SettingMode")

SFC Mode

Will decrease fuel delivery in 1% increments (maximum -30%)

VTEC Mode

Will decrease the Hi-cam switchover point in 100 RPM increments. (minimum 2k RPM

7) SFC-VTEC Harness Connector

The connector to connect your SFC-VTEC harness.

8) Car-Specific Dipswitches

The position on these dipswitches will determine the make and model of your car.

9) Power Switch (forced "reset" switch)

By switching this switch to the "OFF" position, you will cut all current to the SFC-VTEC and reset all presets.

©1998 Temple of VTEC
This Page is not affiliated with Honda Motor Co. Japan, or any division of Honda Motor Co.