[PDF] WIRING DIAGRAMS - Nissan 240SX WIRING DIAGRAMS 1990 Nissan 240SX 1990 Wiring Diagrams Nissan 240SX IDENTIFICATION COMPONENT LOCATION MENU COMPONENT LOCATIONS TABLE Component Figure No. (Location) maf wiring for s14?? - Nissan Forum | Nissan Forums Oct 14, 2008This is the view from the harness side. Everything is color matched, except the orange wire goes to chassis ground reading the wiring diagram for the S14 maf, White is to the ECU(0-5V), Black is ECU ground, Orange is chassis ground, Black/White is power (12V).???