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.

Idle Switch

The idle switch signals the ECA when the throttle valve is fully closed. It is threaded into the throttle body and contacts the throttle linkage. The switch signal affects air/fuel ratio, injector timing, idle speed, EGR flow and ignition timing (turbo engine).