W1 OEM-T121-121 · ECM + coil power (J271 relay feed) SP-14V-1 — 0.85 mm² (≈18 AWG) — — — × W2 OEM-T121-21 · ECM power (J271 relay feed) SP-14V-1 — 0.85 mm² (≈18 AWG) — — — × W3 SP-14V-1 G4XSTORMX-A-A5 · +14V ECU Power — 0.85 mm² (≈18 AWG) — — — × W4 OEM-T121-1 · ECU ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W5 OEM-T121-2 · ECU ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W6 SP-GND-1 G4XSTORMX-A-A25 · System Ground — 0.85 mm² (≈18 AWG) — — — × W7 SP-GND-1 G4XSTORMX-A-A34 · System Ground — 0.85 mm² (≈18 AWG) — — — × W8 SP-GND-1 G4XSTORMX-B-B25 · System Ground — 0.85 mm² (≈18 AWG) — — — × W9 SP-GND-1 G4XSTORMX-B-B34 · System Ground — 0.85 mm² (≈18 AWG) — — — × W10 OEM-T121-108 · Sensor ground SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W11 OEM-T121-29 · MAF sensor ground (G70) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W12 OEM-T121-34 · Accelerator pedal position 1 ground (G79) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W13 OEM-T121-36 · Accelerator pedal position 2 ground (G185) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W14 OEM-T121-90 · Crank position sensor ground (G28) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W15 OEM-T121-91 · Throttle position sensor ground (G187/G188) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W16 SP-0V-1 G4XSTORMX-A-A24 · Sensor Ground — 0.5 mm² (≈20 AWG) — — — × W17 SP-0V-1 G4XSTORMX-B-B22 · Sensor Ground — 0.5 mm² (≈20 AWG) — — — × W18 OEM-T121-72 · Accelerator pedal position 1 5V supply (G79) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W19 OEM-T121-73 · Accelerator pedal position 2 5V supply (G185) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W20 OEM-T121-83 · Throttle position sensor 5V supply (G187/G188) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W21 OEM-T121-98 · Cam + boost sensor 5V supply (G40/G31) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W22 OEM-T121-99 · Knock sensor 5V supply (G61/G66) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W23 SP-5V1-1 G4XSTORMX-A-A32 · +5V Out — 0.5 mm² (≈20 AWG) — — — × W24 OEM-T121-82 · Crank position sensor (G28) G4XSTORMX-A-A8 · Trigger 1 — 0.5 mm² (≈20 AWG) — — — × W25 OEM-T121-86 · Camshaft position sensor (G40) G4XSTORMX-A-A9 · Trigger 2 — 0.5 mm² (≈20 AWG) — — — × W26 OEM-T121-106 · Knock sensor 1 (G61) G4XSTORMX-B-B9 · Knock 1 — 0.5 mm² (≈20 AWG) — — — × W27 OEM-T121-107 · Knock sensor 2 (G66) G4XSTORMX-B-B8 · Knock 2 — 0.5 mm² (≈20 AWG) — — — × W28 OEM-T121-102 · Ignition coil 1 (N127) G4XSTORMX-A-A13 · Ignition 1 — 0.5 mm² (≈20 AWG) — — — × W29 OEM-T121-95 · Ignition coil 2 (N128) G4XSTORMX-A-A12 · Ignition 2 — 0.5 mm² (≈20 AWG) — — — × W30 OEM-T121-103 · Ignition coil 3 (N158) G4XSTORMX-A-A11 · Ignition 3 — 0.5 mm² (≈20 AWG) — — — × W31 OEM-T121-94 · Ignition coil 4 (N163) G4XSTORMX-A-A10 · Ignition 4 — 0.5 mm² (≈20 AWG) — — — × W32 OEM-T121-96 · Injector 1 (N30) G4XSTORMX-A-A4 · Injector 1 — 0.5 mm² (≈20 AWG) — — — × W33 OEM-T121-89 · Injector 2 (N31) G4XSTORMX-A-A3 · Injector 2 — 0.5 mm² (≈20 AWG) — — — × W34 OEM-T121-97 · Injector 3 (N32) G4XSTORMX-A-A2 · Injector 3 — 0.5 mm² (≈20 AWG) — — — × W35 OEM-T121-88 · Injector 4 (N33) G4XSTORMX-A-A1 · Injector 4 — 0.5 mm² (≈20 AWG) — — — × W36 OEM-T121-53 · MAF sensor signal (G70) G4XSTORMX-A-A17 · Analog Volt 1 — 0.5 mm² (≈20 AWG) — — — × W37 OEM-T121-101 · Boost pressure sensor (G31) G4XSTORMX-A-A22 · Analog Volt 2 — 0.5 mm² (≈20 AWG) — — — × W38 OEM-T121-33 · Accelerator pedal position 1 (G79) G4XSTORMX-A-A33 · Analog Volt 3 — 0.5 mm² (≈20 AWG) — — — × W39 OEM-T121-84 · Throttle position sensor 1 (G187) G4XSTORMX-A-A14 · Analog Volt 4 — 0.5 mm² (≈20 AWG) — — — × W40 OEM-T121-35 · Accelerator pedal position 2 (G185) G4XSTORMX-B-B33 · Analog Volt 5 — 0.5 mm² (≈20 AWG) — — — × W41 OEM-T121-92 · Throttle position sensor 2 (G188) G4XSTORMX-B-B15 · Analog Volt 6 — 0.5 mm² (≈20 AWG) — — — × W42 OEM-T121-93 · Engine coolant temperature (G62) G4XSTORMX-A-A15 · Analog Temp 1 — 0.5 mm² (≈20 AWG) — — — × W43 OEM-T121-65 · Fuel pump relay control G4XSTORMX-A-A21 · Aux 1 — 0.5 mm² (≈20 AWG) — — — × W44 OEM-T121-66 · Secondary-air pump relay (J299) G4XSTORMX-A-A20 · Aux 2 — 0.5 mm² (≈20 AWG) — — — × W45 OEM-T121-5 · Wideband lambda heater (Z19) G4XSTORMX-A-A19 · Aux 3 — 0.5 mm² (≈20 AWG) — — — × W46 OEM-T121-63 · Post-cat lambda heater (Z29) G4XSTORMX-A-A18 · Aux 4 — 0.5 mm² (≈20 AWG) — — — × W47 OEM-T121-104 · Boost control solenoid (N75) G4XSTORMX-A-A29 · Aux 5 — 0.5 mm² (≈20 AWG) — — — × W48 OEM-T121-105 · Diverter valve (N249) G4XSTORMX-A-A28 · Aux 6 — 0.5 mm² (≈20 AWG) — — — × W49 OEM-T121-115 · VVT camshaft adjustment valve (N205) G4XSTORMX-A-A27 · Aux 7 — 0.5 mm² (≈20 AWG) — — — × W50 OEM-T121-47 · Check engine light (MIL) G4XSTORMX-A-A26 · Aux 8 — 0.5 mm² (≈20 AWG) — — — × W51 OEM-T121-48 · EPC warning light G4XSTORMX-B-B4 · Injector 5 — 0.5 mm² (≈20 AWG) — — — × W52 OEM-T121-64 · EVAP canister valve (N80) G4XSTORMX-B-B3 · Injector 6 — 0.5 mm² (≈20 AWG) — — — × W53 OEM-T121-9 · Secondary-air injection valve (N112) G4XSTORMX-B-B2 · Injector 7 — 0.5 mm² (≈20 AWG) — — — × W54 OEM-T121-68 · Post-cat lambda signal (G130) G4XSTORMX-B-B16 · Analog Volt 7 — 0.5 mm² (≈20 AWG) — — — × W55 OEM-T121-69 · Post-cat lambda signal (G130) G4XSTORMX-B-B23 · Analog Volt 8 — 0.5 mm² (≈20 AWG) — — — × W56 OEM-T121-85 · Intake air temperature (G42) G4XSTORMX-A-A16 · Analog Temp 2 — 0.5 mm² (≈20 AWG) — — — × W57 OEM-T121-54 · Road speed signal (VSS) G4XSTORMX-A-A30 · Digital Input 1 — 0.5 mm² (≈20 AWG) — — — × W58 OEM-T121-60 · CAN bus high G4XSTORMX-B-B27 · CAN 2 H — 0.5 mm² (≈20 AWG) — — — × W59 OEM-T121-58 · CAN bus low G4XSTORMX-B-B28 · CAN 2 L — 0.5 mm² (≈20 AWG) — — — ×