Porsche 2012 911 GT3 CUP Technical Manual page 24

3.6.1.2. Play compensation
3.6.2. Throttle butterfly potentiometer calibration
To remove throttle cable follow the procedure described below:
1. The throttle cable is tensioned automatically by the length
compensation spring
2. To finish, rotate the connecting part in the direction "close" till the
marking lugs on both parts of the connecting part are aligned
The throttle cable is tensioned automatically by the length compensation
spring
The throttle butterfly potentiometer must always be recalibrated if:
 ECU was changed or reprogrammed
 Engine was changed
 Throttle butterfly potentiometer was changed
 Implausible throttle butterfly position values are displayed
The following steps must be taken to calibrate the potentiometer:
1. Adjust the throttle cable so it is tension free (see
3.6.1.1)
2. Disconnect the throttle cable from the cam-disc
3. Loosen the idle adjustment screw 1.)
4. The cam-disc must now rest on the threaded bush 3.),
the throttle butterfly is now completely closed.
Calibration of the throttle butterfly is made in this
position (reset the throttle butterfly angle to 0°)
5. This calibration is made via Bosch Modas a.) or the
MoTeC Dash b.)
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