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131 II. Main plug-in units explanation Name of plug-in unit Pin No. Origin 1 Main relay Plug-in unit of carbon tank electromagnetic valve 2 ECU 1 ECU 2 Pressure sensor Plug-in unit of throttle position 3 ECU 1 ECU 2 ECU 3 ECU Plug-in unit of stepper motor 4 ECU 1 Main relay Plug-in unit of the nozzle 1 2 Main relay 1 Main relay Plug-in unit of the nozzle 2 2 ECU 1 Main relay Plug-in unit of the nozzle 3 2 ECU 1 Main relay Plug-in unit of the nozzle 4 2 ECU 1 ECU 2 ECU Shock sensor 3 — 1 ECU 2 ECU 3 ECU Pressure sensor 4 ECU 1 ECU 2 ECU Rotation speed sensor 3 — 1 Main relay 2 ECU Phrase sensor 3 ECU 1 ECU 2 ECU 3 ECU Ignition 4 — 1 Main relay 2 ECU 3 ECU Oxygen sensor (2) 4 ECU Main relay 1 |