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
Except California
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The ignition control system is controlled by the ECM.
The ECM determines the optimal
ignition timing according to signals sent from various sensors (which monitor the operating conditions of the engine), and sends a signal to the ignitor.
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The ECM has a "closed-loop" control function with
map which provides superb transient characteristics for responsive
ignition timing control.
