W1 OEM-C175E-18 · PCM power feed (VPWR, fused) SP-14V-1 — 0.85 mm² (≈18 AWG) — — — × W2 NEW-KEYON-1 MAIN-R-COIL+ · Relay coil positive (ignition-switched +12V) — 0.5 mm² (≈20 AWG) — — — × W3 NEW-BATT-1 MAIN-R-IN · Relay contact input (battery + via main fuse) — 0.85 mm² (≈18 AWG) — — — × W4 MAIN-R-COIL- · Relay coil negative (ECU low-side driver) SP-GND-1 — 0.5 mm² (≈20 AWG) — — — × W5 MAIN-R-OUT · Relay contact output (switched +12V bus) SPEEDUINO-PWR-12V · Main power (+12 V switched) — 0.85 mm² (≈18 AWG) — — — × W6 OEM-C175E-23 · Electronic throttle control return (ETCRTN) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W7 OEM-C175E-40 · VR sensor return (VRSRTN) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W8 OEM-C175E-49 · Signal return engine #2 SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W9 OEM-C175E-52 · Knock sensor 1 bank 1 return (KS1−) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W10 OEM-C175E-54 · VR sensor return (VRSRTN) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W11 OEM-C175E-67 · Knock sensor 2 bank 1 return (KS2−) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W12 OEM-C175E-69 · Crankshaft position return (CKP−) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W13 SP-0V-1 SPEEDUINO-A-12 · Ground — 0.5 mm² (≈20 AWG) — — — × W14 SP-0V-1 SPEEDUINO-A-23 · Ground — 0.5 mm² (≈20 AWG) — — — × W15 OEM-C175E-17 · Buffered power supply sensors (VBPWR) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W16 OEM-C175E-34 · Voltage reference engine (VREF) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W17 OEM-C175E-8 · Electronic throttle control reference (ETCREF) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W18 SP-5V1-1 SPEEDUINO-A-13 · 5V — 0.5 mm² (≈20 AWG) — — — × W19 OEM-C175E-70 · Crankshaft position (CKP+) SPEEDUINO-A-25 · Crank input / VR1+ — 0.5 mm² (≈20 AWG) — — — × W20 OEM-C175E-55 · Camshaft position bank 1 (CMP1) SPEEDUINO-A-24 · Cam input / VR2+ — 0.5 mm² (≈20 AWG) — — — × W21 OEM-C175E-56 · Camshaft position bank 1 exhaust (CMP1 EX) SPEEDUINO-A-26 · VR2- — 0.5 mm² (≈20 AWG) — — — × W22 OEM-C175E-41 · Camshaft position bank 2 (CMP2) SPEEDUINO-A-14 · Proto area 1 (flex fuel) — 0.5 mm² (≈20 AWG) — — — × W23 OEM-C175E-87 · Ignition coil on plug G (COP-G) SPEEDUINO-A-7 · Ignition 1 — 0.5 mm² (≈20 AWG) — — — × W24 OEM-C175E-88 · Ignition coil on plug F (COP-F) SPEEDUINO-A-34 · Ignition 2 — 0.5 mm² (≈20 AWG) — — — × W25 OEM-C175E-89 · Ignition coil on plug E (COP-E) SPEEDUINO-A-33 · Ignition 3 — 0.5 mm² (≈20 AWG) — — — × W26 OEM-C175E-90 · Ignition coil on plug H (COP-H) SPEEDUINO-A-8 · Ignition 4 — 0.5 mm² (≈20 AWG) — — — × W27 OEM-C175E-1 · Fuel injector driver 1 (INJ 1) SPEEDUINO-A-1 · Injector 1 — 0.5 mm² (≈20 AWG) — — — × W28 OEM-C175E-62 · Fuel injector driver 2 (INJ 2) SPEEDUINO-A-2 · Injector 2 — 0.5 mm² (≈20 AWG) — — — × W29 OEM-C175E-46 · Fuel injector driver 3 (INJ 3) SPEEDUINO-A-3 · Injector 3 — 0.5 mm² (≈20 AWG) — — — × W30 OEM-C175E-3 · Fuel injector driver 4 (INJ 4) SPEEDUINO-A-5 · Injector 4 — 0.5 mm² (≈20 AWG) — — — × W31 OEM-C175E-2 · Fuel injector driver 5 (INJ 5) SPEEDUINO-A-1 · Injector 1 — 0.5 mm² (≈20 AWG) — — — × W32 OEM-C175E-31 · Fuel injector driver 6 (INJ 6) SPEEDUINO-A-2 · Injector 2 — 0.5 mm² (≈20 AWG) — — — × W33 OEM-C175E-61 · Fuel injector driver 7 (INJ 7) SPEEDUINO-A-3 · Injector 3 — 0.5 mm² (≈20 AWG) — — — × W34 OEM-C175E-16 · Fuel injector driver 8 (INJ 8) SPEEDUINO-A-5 · Injector 4 — 0.5 mm² (≈20 AWG) — — — × W35 OEM-C175E-81 · Throttle actuator control motor − (TACM−) SPEEDUINO-A-32 · Idle stepper 1B — 0.5 mm² (≈20 AWG) — — — × W36 OEM-C175E-82 · Throttle actuator control motor + (TACM+) SPEEDUINO-A-31 · Idle stepper 1A — 0.5 mm² (≈20 AWG) — — — × W37 SPEEDUINO-A-16 · Proto area 3 (fuel pump) NEW-FUELPUMP-1 — 0.5 mm² (≈20 AWG) — — — × W38 OEM-C175E-10 · Throttle position negative slope (TP1-NS) SPEEDUINO-A-22 · TPS input — 0.5 mm² (≈20 AWG) — — — × W39 OEM-C175E-27 · Intake air temperature (IAT) SPEEDUINO-A-20 · Inlet air temp (IAT) — 0.5 mm² (≈20 AWG) — — — × W40 OEM-C175E-47 · Cylinder head temperature (CHT) SPEEDUINO-A-19 · Coolant temp (CLT) — 0.5 mm² (≈20 AWG) — — — × W41 OEM-C175E-78 · Heater O2 post-cat 1st (HTR12) SPEEDUINO-A-15 · Proto area 2 (fan) — 0.5 mm² (≈20 AWG) — — — × W42 OEM-C175E-79 · Heater O2 pre-cat 1st (HTR11) SPEEDUINO-A-36 · Idle 2 (3-wire idle) — 0.5 mm² (≈20 AWG) — — — × W43 OEM-C175E-83 · Heater O2 post-cat 2nd (HTR22) SPEEDUINO-A-35 · Boost — 0.5 mm² (≈20 AWG) — — — × W44 OEM-C175E-84 · Heater O2 pre-cat 2nd (HTR21) SPEEDUINO-A-37 · PWM idle — 0.5 mm² (≈20 AWG) — — — × W45 OEM-C175E-5 · Variable camshaft timing valve 1 (VCT1) SPEEDUINO-A-38 · VVT — 0.5 mm² (≈20 AWG) — — — × W46 OEM-C175E-44 · Intake manifold monitor (IMM) SPEEDUINO-A-11 · MAP sensor (0-5V) — 0.5 mm² (≈20 AWG) — — — × W47 OEM-C175E-30 · Engine oil level switch (EOL) SPEEDUINO-A-18 · Proto area 5 (clutch) — 0.5 mm² (≈20 AWG) — — — ×