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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Main Relay (Computer/Fuel System): Description and Operation

The Main Relay (also referred to as EGI Relay), located in a relay panel mounted forward of the right strut tower, supplies power to the ECU and a number of ECU controlled devices when the ignition switch is turned "ON."

These devices include the igniter, fuel injectors, and a variety of solenoid valves. The ECU operates these devices by completing the circuit to ground when necessary.