W1 OEM-X-15 · Ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W2 OEM-X-34 · Ground (output stages) SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W3 OEM-X-55 · Ground (ignition) SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W4 OEM-X-6 · Ground (injector output stages) SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W5 SP-GND-1 SPEEDUINO-A-10 · Ground — 0.85 mm² (≈18 AWG) — — — × W6 SP-GND-1 SPEEDUINO-A-9 · Ground — 0.85 mm² (≈18 AWG) — — — × W7 OEM-X-28 · Ground (electronics + sensor shielding) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W8 OEM-X-40 · O2 sensor signal ground SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W9 OEM-X-43 · Crank position sensor (-) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W10 OEM-X-44 · Sensor ground (IAT/ECT/TPS) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W11 OEM-X-71 · Knock sensor ground/shield SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W12 SP-0V-1 SPEEDUINO-A-12 · Ground — 0.5 mm² (≈20 AWG) — — — × W13 SP-0V-1 SPEEDUINO-A-23 · Ground — 0.5 mm² (≈20 AWG) — — — × W14 OEM-X-59 · +5V sensor supply SPEEDUINO-A-13 · 5V — 0.5 mm² (≈20 AWG) — — — × W15 OEM-X-16 · Crank position sensor (+) SPEEDUINO-A-25 · Crank input / VR1+ — 0.5 mm² (≈20 AWG) — — — × W16 OEM-X-17 · Camshaft position sensor (Hall) SPEEDUINO-A-24 · Cam input / VR2+ — 0.5 mm² (≈20 AWG) — — — × W17 OEM-X-50 · Ignition coil cylinder 1 SPEEDUINO-A-7 · Ignition 1 — 0.5 mm² (≈20 AWG) — — — × W18 OEM-X-51 · Ignition coil cylinder 2 SPEEDUINO-A-34 · Ignition 2 — 0.5 mm² (≈20 AWG) — — — × W19 OEM-X-52 · Ignition coil cylinder 3 SPEEDUINO-A-33 · Ignition 3 — 0.5 mm² (≈20 AWG) — — — × W20 OEM-X-23 · Ignition coil cylinder 4 SPEEDUINO-A-8 · Ignition 4 — 0.5 mm² (≈20 AWG) — — — × W21 OEM-X-33 · Injector cylinder 1 SPEEDUINO-A-1 · Injector 1 — 0.5 mm² (≈20 AWG) — — — × W22 OEM-X-32 · Injector cylinder 2 SPEEDUINO-A-2 · Injector 2 — 0.5 mm² (≈20 AWG) — — — × W23 OEM-X-31 · Injector cylinder 3 SPEEDUINO-A-3 · Injector 3 — 0.5 mm² (≈20 AWG) — — — × W24 OEM-X-5 · Injector cylinder 4 SPEEDUINO-A-5 · Injector 4 — 0.5 mm² (≈20 AWG) — — — × W25 OEM-X-3 · Injector cylinder 5 SPEEDUINO-A-1 · Injector 1 — 0.5 mm² (≈20 AWG) — — — × W26 OEM-X-4 · Injector cylinder 6 SPEEDUINO-A-2 · Injector 2 — 0.5 mm² (≈20 AWG) — — — × W27 OEM-X-1 · Fuel pump relay control SPEEDUINO-A-16 · Proto area 3 (fuel pump) — 0.5 mm² (≈20 AWG) — — — × W28 OEM-X-27 · Main relay control SPEEDUINO-A-15 · Proto area 2 (fan) — 0.5 mm² (≈20 AWG) — — — × W29 OEM-X-38 · O2 sensor heater relay control SPEEDUINO-A-36 · Idle 2 (3-wire idle) — 0.5 mm² (≈20 AWG) — — — × W30 OEM-X-2 · Idle speed control valve (close winding) SPEEDUINO-A-37 · PWM idle — 0.5 mm² (≈20 AWG) — — — × W31 OEM-X-29 · Idle speed control valve (open winding) SPEEDUINO-A-35 · Boost — 0.5 mm² (≈20 AWG) — — — × W32 OEM-X-36 · Evap purge solenoid SPEEDUINO-A-38 · VVT — 0.5 mm² (≈20 AWG) — — — × W33 OEM-X-7 · VANOS intake camshaft solenoid SPEEDUINO-A-31 · Idle stepper 1A — 0.5 mm² (≈20 AWG) — — — × W34 OEM-X-8 · Check engine light (MIL) SPEEDUINO-A-32 · Idle stepper 1B — 0.5 mm² (≈20 AWG) — — — × W35 OEM-X-47 · Tachometer output SPEEDUINO-A-17 · Proto area 4 (tachometer) — 0.5 mm² (≈20 AWG) — — — × W36 OEM-X-73 · Throttle position (TPS) SPEEDUINO-A-22 · TPS input — 0.5 mm² (≈20 AWG) — — — × W37 OEM-X-13 · O2 sensor signal SPEEDUINO-A-21 · O2 sensor — 0.5 mm² (≈20 AWG) — — — × W38 OEM-X-78 · Engine coolant temperature (ECT) SPEEDUINO-A-19 · Coolant temp (CLT) — 0.5 mm² (≈20 AWG) — — — × W39 OEM-X-77 · Intake air temperature (IAT) SPEEDUINO-A-20 · Inlet air temp (IAT) — 0.5 mm² (≈20 AWG) — — — × W40 OEM-X-42 · Vehicle speed signal SPEEDUINO-A-14 · Proto area 1 (flex fuel) — 0.5 mm² (≈20 AWG) — — — ×