October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

High Altitude Switch

Switch is mounted under driver's seat (911 Carrera) or behind left dashboard (924-S and 944). The high altitude switch closes over 3300 ft. (1000 m), signaling the CU to provide lean fuel mixture.