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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Idle Speed W/Computer Control

Fig. 4 Idle Speed W/Computer Control Specifications:





1471cc, 1588cc, ground test terminal on ALDL connector. Race engine over 2000 rpm and set idle to specified value.

Connect SCAN tool to ALDL. Select "Field Service" mode. After 45 seconds, disconnect IAC and exit mode. Disconnect distributor set timing connector and adjust idle speed.