Boxster S (987) F6-3.2L (2005)
9. Read value on pressure gauge. Fuel pressure - engine not running: 3.8 bar+/-0.2 bar
10. Deactivate the fuel pump relay on the PIWIS Tester by pressing F8 - Stop . Then, press F11 << to return to the start screen and switch off the
Tester.
11. Switch off the ignition and remove PIWIS Tester adapter lead in the vehicle.
12. Checking the engine at idle speed: connect the pressure gauge 378a as described above and start the engine. Switch off the engine after reading the
fuel pressure.->Fuel pressure - idle speed: 3.8 bar+/-0.2 bar
DANGER:
Risk of fire from escaping fuel.
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Danger of fatal injury and damage to property.
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Observe basic safety instructions when working on the fuel system.
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Secure working area.
13. Loosen the union nut on the connecting cable 9559 for the pressure gauge 378a on the test connection and remove special tool. Collect escaping
fuel with a cloth.
INFORMATION: Use the brass cap on the test connection of the fuel supply line only once as the sealing ring cannot be replaced. To avoid possible
leaks, the cap must be replaced after removal.
14. Position new closure cap on test connection and tighten (a/f 13 mm). Tightening torque: 2.5 Nm (2 ftlb.)+/-0.5 Nm (+/-0.5 ftlb.)
Subsequent work
1. Mount engine compartment cover.
2. Close convertible top.
3. Remove protective covers.