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
Cranking Signal: Description and Operation
PURPOSE Voltage corresponding to engine RPM is supplied from the "tach" terminal on the
distributor. Until a
voltage signal equivalent to a predetermined RPM is received by the MCU, the system remains in the open loop mode, resulting in a rich
air/fuel mixture for starting purposes.