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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Air Control Valve

The Air Supply Control Valve is used In the Thermactor (secondary air) System.

The air control valve directs air pump output to the exhaust manifold or downstream to the catalyst system depending upon the engine control strategy.