Porsche 996 TT Repair Manual page 686

einordnung
5. Pull the three vacuum hoses −arrows− off the intake distributor.
6. Undo the holder of the fuel return line. Unscrew the M6 screw −arrow− for this
purpose.
7. Connect the connector of the overrun air valve −arrow− and pull off the two vacuum hoses −arrow− .
8. Remove the overrun air valve module.
9.
Removing intake distributor 623