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.

Altitude Switch

The altitude switch consist of bellows and a micro-switch. The bellows expands or contracts in response to changes in atmospheric pressure. At high altitudes the bellows expands to turn the micro-switch on so that electrical current can be supplied to actuate solenoid valve and the ECM.