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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Throttle Full Close Switch: Description and Operation
The
Idle Switch, located on the throttle body, is an "ON/OFF" switch that signals the ECU whether the throttle is completely closed or not. The ECU utilizes this input in its calculations of:
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Fuel injection quantity
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Fuel injection timing
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ISC valve operation