Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Charcoal Canister Purging Control (EVAP)

The fuel vapors stored in the charcoal canister are purged at temperatures above 70 °C (158 °F) via the purge switch-over valve (Y58/1). The vapors then get burned in the combustion process. In order to control the purge quantity, the LH control module activates the switch-over valve at a frequency of 7.5 Hz (cycles). The purge quantity is determined by the duration of each cycle.