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
EVAP Tank Vacuum Decay Slope
The display shows vacuum decay from
0 to
2 in inches of H2O per second. The vacuum decay slope is used during the
PCM's diagnosis of the EVAP system. The PCM will create and hold a vacuum in the EVAP system.
The rate at which this stored vacuum is released (the decay slope) determines if a leak is present in the EVAP system.