Already mentioned them all above, the shown graphs are not from a power commander they Yamaha's factory ECU open loop fuel tables & bios tables that I have extracted from the ECU .

The ECU will run all the time in the open loop maps if the closed loop is disabled.

The open loop maps are IAP (Intake Air Pressure) which is intake pressure readings over RPM measured by the pressure sensor in the throttle intake port & the TPS (Throttle Position Sensor) over RPM, which measures the throttle blade opening, these two groups of maps are blended together in the bios tables to form a PWM (pulse width modulated) signal to the injector.

The closed loop AFR is taken from the IAP tables + long & short fuel trims + feedback from the O2 sensor targeting 14.7:1AFR for emissions, the open loop tables are ignored when the ECU is in the closed loop state.

I love your technical posts Kev...I have no idea what your talking about and it may as well all be in german to me!..

The fact that you know what your talking about and that you have the skills to modify things above factory amazes me.

You Sir are a LEGEND!!

Thanks mate, bikes are my life, I am lucky that I work with multiple ECU's networking over 140 ECU's in one vehicle + software modifications in my every day job & can apply what I have learnt & do to the motorcycle world to improve the ride.

I am ready for the new XT range & will get straight onto the remapping of the ECU's when they are released.