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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Engine Control Module: Description and Operation
The ECU, mounted in the passenger compartment, consists of a printed circuit board in a protective metal case. The ECU receives and processes signals from the sensors and switches to control fuel delivery time, EGR, solenoid valve for pressure sensor, idle speed and secondary air management.