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)
Or, hide this message:
temporarily or
permanently
Main Relay (Computer/Fuel System): Description and Operation
Description When the ignition switch is turned on, battery voltage is applied from the ignition switch to the
engine control module. This turns ON the ignition power transistor and energizes the MFI control relay coil. This turns ON the MFI control relay switch and power is supplied from the battery to the engine control module through the MFI control relay switch.