RX7 2RTR-1308cc 1.3L MFI (1991)
Main Relay (Computer/Fuel System): Description and Operation
The Main Relay, mounted to the left inner fender near the firewall, supplies power to the ECU and a number of ECU controlled devices when the
ignition is switched "ON." These devices include the circuit opening relay, ignition coils, fuel injectors, metering oil pump and a variety of solenoid
valves. The ECU completes the circuit by grounding these devices when indicated by its calculations.