PF01 ONLY
Disconnect the ecu multiplug from the ecu itself and then with a multimeter:
Pin 1 of ecu connect your negative probe.
Pin 17 of ecu connect your positive probe.
Adjust the sensor until it is just open circuit and ensure it drops to a reading the moment the throttle is moved, but be certain it always goes open circuit with the throttle released.
PF09 ONLY
Plug the ecu multiplug back into the ecu and turn on the ignition.
Adjust the sensor to read <0.35volts at idle position.