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.

Detonation (Knock) Sensor (Maxima, NX 2.0L, Pathfinder,

Pickup 3.0L, Sentra 2.0L, 240SX & 300ZX)

Basic ignition timing is preprogrammed. Detonation sensor detects engine knocking, converts knocking vibration into voltage signal and transmits it to the ECU. Information is used by ECU to adjust ignition timing accordingly to eliminate detonation.