Operation CHARM: Car repair manuals for everyone.
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

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Ignition System: Description and Operation


The electronic ignition system consists of an electronic spark control unit (module or igniter), ignition coil and distributor. Turbocharged engines also use a detonation sensor and a pressure sensor. Since the turbocharged engine incorporates a signal generator, the igniter is separate from the distributor.