RACE CORE

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 relayPort injectorsSmart coilsMAP sensorThrottle positionCLT & IATCrank VRCrank HallElectronic throttleCAN busWideband (analog + CAN)Fuel pump & fan

Port injectors

Saturated injectors, switched 12 V, low-side drivers.

Main relay +12Fused injector railInjector 1Pin A +12 VPin B to ECURace CoreA3 Low-side 1Repeat per cylinder — LS2 on A15, LS3 on A4…
Saturated injector. 12 V from main relay. ECU low-side to ground. One pin per injector.