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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General Information
The
Distributor Ignition
(DI) system is responsible for producing and controlling a high energy secondary spark. This spark is used to ignite the compressed
air/fuel mixture at precisely the correct time. This provides optimal performance, fuel economy, and control of exhaust emissions. This
ignition system consists of a single
ignition coil and
Ignition Control Module (ICM). Spark energy is delivered via a
distributor cap, rotor, and secondary spark plug wires. The driver module within the ICM is commanded to operate the coil by the Powertrain Control Module
(PCM), that has complete control over spark timing. The DI system consists of the following components: