W1 OEM-X-54 · ECU power (+14V from main relay) SP-14V-1 — 0.85 mm² (≈18 AWG) — — — × W2 SP-14V-1 FT450-A-A13 · +12V switched — 0.85 mm² (≈18 AWG) — — — × W3 OEM-X-15 · Ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W4 OEM-X-34 · Ground (output stages) SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W5 OEM-X-55 · Ground (ignition) SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W6 OEM-X-6 · Ground (injector output stages) SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W7 SP-GND-1 FT450-A-A7 · Power ground — 0.85 mm² (≈18 AWG) — — — × W8 OEM-X-28 · Ground (electronics + sensor shielding) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W9 OEM-X-40 · O2 sensor signal ground SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W10 OEM-X-43 · Crank position sensor (-) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W11 OEM-X-44 · Sensor ground (IAT/ECT/TPS) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W12 OEM-X-71 · Knock sensor ground/shield SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W13 SP-0V-1 FT450-A-A12 · Signal ground — 0.5 mm² (≈20 AWG) — — — × W14 OEM-X-59 · +5V sensor supply FT450-A-A14 · +5V sensor supply — 0.5 mm² (≈20 AWG) — — — × W15 OEM-X-16 · Crank position sensor (+) FT450-A-A18 · RPM reference (crank -) — 0.5 mm² (≈20 AWG) — — — × W16 SP-0V-1 FT450-A-A18 · RPM reference (crank -) — 0.5 mm² (≈20 AWG) — — — × W17 OEM-X-17 · Camshaft position sensor (Hall) FT450-A-A17 · Phase input (cam) — 0.5 mm² (≈20 AWG) — — — × W18 OEM-X-50 · Ignition coil cylinder 1 FT450-A-A8 · Ignition 1 — 0.5 mm² (≈20 AWG) — — — × W19 OEM-X-51 · Ignition coil cylinder 2 FT450-A-A9 · Ignition 2 — 0.5 mm² (≈20 AWG) — — — × W20 OEM-X-52 · Ignition coil cylinder 3 FT450-A-A10 · Ignition 3 — 0.5 mm² (≈20 AWG) — — — × W21 OEM-X-23 · Ignition coil cylinder 4 FT450-A-A11 · Ignition 4 — 0.5 mm² (≈20 AWG) — — — × W22 OEM-X-33 · Injector cylinder 1 FT450-A-A1 · Injector 1 (Bank A) — 0.5 mm² (≈20 AWG) — — — × W23 OEM-X-32 · Injector cylinder 2 FT450-A-A2 · Injector 2 (Bank A) — 0.5 mm² (≈20 AWG) — — — × W24 OEM-X-31 · Injector cylinder 3 FT450-A-A1 · Injector 1 (Bank A) — 0.5 mm² (≈20 AWG) — — — × W25 OEM-X-5 · Injector cylinder 4 FT450-A-A2 · Injector 2 (Bank A) — 0.5 mm² (≈20 AWG) — — — × W26 OEM-X-3 · Injector cylinder 5 FT450-A-A1 · Injector 1 (Bank A) — 0.5 mm² (≈20 AWG) — — — × W27 OEM-X-4 · Injector cylinder 6 FT450-A-A2 · Injector 2 (Bank A) — 0.5 mm² (≈20 AWG) — — — × W28 OEM-X-1 · Fuel pump relay control FT450-A-A6 · Aux 4 (fuel pump / relays) — 0.5 mm² (≈20 AWG) — — — × W29 OEM-X-27 · Main relay control FT450-A-A3 · Aux 1 — 0.5 mm² (≈20 AWG) — — — × W30 OEM-X-41 · Mass air flow (MAF) signal FT450-A-A20 · White input 1 — 0.5 mm² (≈20 AWG) — — — × W31 OEM-X-73 · Throttle position (TPS) FT450-A-A21 · White input 2 — 0.5 mm² (≈20 AWG) — — — × W32 OEM-X-78 · Engine coolant temperature (ECT) FT450-A-A24 · White input 5 (water temp) — 0.5 mm² (≈20 AWG) — — — × W33 OEM-X-38 · O2 sensor heater relay control FT450-A-A4 · Aux 2 — 0.5 mm² (≈20 AWG) — — — × W34 OEM-X-2 · Idle speed control valve (close winding) FT450-A-A5 · Aux 3 — 0.5 mm² (≈20 AWG) — — — × W35 OEM-X-13 · O2 sensor signal FT450-A-A22 · White input 3 (TPS) — 0.5 mm² (≈20 AWG) — — — × W36 OEM-X-77 · Intake air temperature (IAT) FT450-A-A26 · White input 7 (air temp) — 0.5 mm² (≈20 AWG) — — — ×