How to access hidden MFA extras
Hold the button in, turn your ignition on, off and on again
position 1:
Default: Engine code
1: Land code
2: Speedometer
3: Upper rev limitter
4: Lower rev limitter
5: Decelaration fuel pressure
6: Display test
MFA switch on position 2:
Default: Test programm of programmed bytes (checksum)
1: Intake Vacuum
2: Digital rev counter
3: Fuel usage (like normal)
4: Signal from speedo sensor
5: Oil temperature (like default)
6: Ambient temperature (like default)
Here is an alternative list I found on another site:
MFA position 1
Default: Engine Code
1. Country Code
2. Road RPM??
3. Upper RPM
4. Lower RPM
5. No Value
6. Display test
MFA position 2
Default: Program checksum
1. Intake vacuum
2. Real time RPM
3. MPG
4. Speed impulse
5. Oil Temp
6. Outside Temp