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.

5.8L V8

The Idle Tracking Switch (ITS), located on carburetor, is a mechanically operated electric switch held open by throttle linkage when throttle is closed. It is used on the Extended Idle Air By-Pass system.

When ITS is opened, EEC module is signaled to deactivate the normally closed solenoid. When this happens, vacuum is removed from the normally closed by-pass valve, and thermactor air is released into atmosphere.