Fuel guage calibration

[gpt817]

Hi Guys,

Can anyone send me a proceduaral instruction or a link on how to calibrate the fuel guage of myn996TT using a PIWIS?

Thanks. Would appreciate your help.

[Loren]

Calibrating fuel level sensor system

Note:

- Calibration is necessary after replacement of the fuel tank, fuel level sensor or instrument cluster.

- The fuel level sensor system need not be calibrated if the battery was disconnected or a plug connection on the instrument cluster or fuel level sensor was removed. The values remain stored in the instrument cluster.

- A range on remaining fuel of less than 15 km is not displayed in the instrument cluster.

1. Disconnect the battery and cover terminal or battery.

2. Remove cap over the fuel level sensor system.

3. Remove fuel level sensor.

4. Safely -- Using a fuel extractor, completely drain the fuel tank through the fuel level sensor opening.

5. Make sure that the two recesses on the left and right−hand sides of the tank are emptied completely.

6. Reinstall the fuel level sensor and, with "ignition off", fill the tank with 28 liters of fuel.

7. Perform tank calibration with the Porsche System Tester 2 (or PIWIS tester) :

- Select vehicle type (911 Carrera)

- Select control modules

- Select instrument cluster

- Select menu item "Tank calibration"

- Confirm calibration

8. The fuel level sensor system has now been calibrated.

[gpt817]

Calibrating fuel level sensor system

Note:

- Calibration is necessary after replacement of the fuel tank, fuel level sensor or instrument cluster.

- The fuel level sensor system need not be calibrated if the battery was disconnected or a plug connection on the instrument cluster or fuel level sensor was removed. The values remain stored in the instrument cluster.

- A range on remaining fuel of less than 15 km is not displayed in the instrument cluster.

1. Disconnect the battery and cover terminal or battery.

2. Remove cap over the fuel level sensor system.

3. Remove fuel level sensor.

4. Safely -- Using a fuel extractor, completely drain the fuel tank through the fuel level sensor opening.

5. Make sure that the two recesses on the left and right−hand sides of the tank are emptied completely.

6. Reinstall the fuel level sensor and, with "ignition off", fill the tank with 28 liters of fuel.

7. Perform tank calibration with the Porsche System Tester 2 (or PIWIS tester) :

- Select vehicle type (911 Carrera)

- Select control modules

- Select instrument cluster

- Select menu item "Tank calibration"

- Confirm calibration

8. The fuel level sensor system has now been calibrated.

Thank you Loren,

In item 7, are we going to turn on the ignition to perform the tank calibration?

We're goin to do the PIWIS calibration tomorrow.

[Loren]

Yes, any PST2 or PIWIS function requires the ignition to be in the "on" position.