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Installation

Wiring diagrams

Schematic views in the same order as a hardware manual: power first, then injectors and coils, then sensors and CAN.

Power, grounds & main relay Port injectors Smart coils MAP sensor Throttle position CLT & IAT Crank VR Crank Hall Electronic throttle CAN bus Wideband (analog + CAN)Fuel pump & fan

Fuel pump & fan

Low-side 16 pump relay, Low-side 15 fan relay.

ECU grounds the relay coil. Pump current does not pass through Race Core.