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.

Wide Open Throttle Switch

This switch is mounted on the same bracket in the engine compartment as the idle position switch. This switch senses intake manifold vacuum and sends an electrical signal to the ECM when engine is at wide open throttle. This information is used by the ECM to distinguish between closed throttle (idle) and wide open throttle positions.