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

Smart coils

5 V logic-level coil-on-plug wiring. Do not wire dumb coil negatives.

Main relay +12Head groundSmart coil cyl 112 VGNDSignal (5 V)Race CoreA35 Ignition 1
Smart coil. 5 V logic from Ignition n. 12 V and coil ground are NOT the ECU ignition pin.