911 Turbo Cabriolet AWD (997) F6-3.6L Turbo (2008)
12. Remove pressure gauge.
12.1. Wrap a cloth around the test connection to absorb emerging fuel. Wear fuel-resistant protective clothes and goggles.
12.2. Loosen and unscrew knurled nut on connecting line and remove pressure gauge.
12.3. Screw protection cap onto the valve and tighten hand-tight.
Fuel system holding pressure
DANGER:
Working on the fuel system.
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Danger of fatal injury and damage to property.
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Safety instructions must be observed at all times.
1. Attach or mount a warning sign in a clearly visible position on the vehicle.
INFORMATION: The battery voltage must not fall below 11 volts during the check.
2. Check the battery charge state using a voltmeter or the Porsche PIWIS Tester 9718 (Supply voltage menu item).
Connect a battery charger if necessary.
INFORMATION:
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The fuel system of the 997 Turbo, 997 GT2 and 997 GT3 has two electric fuel pumps (EKP).
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The delivery rate volume and supply pressure of these pumps must be checked individually.
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These can be activated individually in the PIWIS Tester 9718.
3. Connect pressure gauge in the same way as for the supply pressure test.
3.1. Activate fuel pump 1 (EKP 1) in the same way as for the supply pressure test until the nominal value 3.9 ± 0.3 bar is reached.
3.2. Check holding pressure.
Nominal value after one hour: 2 bar
4. Repeat the test for fuel pump 2 (EKP 2).
5. Switch off ignition, switch off Porsche System Tester and disconnect adapter line in the passenger compartment.
6. Remove pressure gauge.
6.1. Wrap a cloth around the test connection to absorb emerging fuel. Wear fuel-resistant protective clothes and goggles.
6.2. Loosen and unscrew knurled nut on connecting line and remove pressure gauge.
6.3. Screw protection cap onto the valve and tighten hand-tight.