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 Fuel Control System" for Federal and California and "Electronic Spark Control" for Canada consists of a "Spark Control Computer, SCC", various engine sensors, and a specially calibrated carburetor and either a dual pick-up or single pick-up distributor. The function of the system is to provide a way for the engine to burn a correct fuel mixture.