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)
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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 valves (Y58/2 and Y58/3). The vapors then get burned in the combustion process. In order to control the purge quantity, the LH
control units activate the switch-over valves at a frequency of 7.5 Hz (cycles). The purge quantity is determined by the duration of each cycle.