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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Ignition Coil: Specifications

Resistance at 75 degrees F (24 degrees C)

1981 4-cyl.eng: Primary, 0.4-0.5 ohms; Secondary, 8,000-9,500 ohms.

1982 4-cyl. GM eng.:Primary, 0-2 ohms; Secondary, 6,000-30,000 ohms.

1981-82 6-cyl., 8-cyl. eng.:Primary, 1.13-1.23 ohms; Secondary, 7,700-9,300 ohms.