13. FUEL INJECTION SYSTEM People GT 300i ELECTRIC CONTROL UNIT (ECU) REMOVAL/INSTALLATION Do not disconnect or connect the ECU connector during the ignition switch "ON"; it may cause the ECU damaged. The throttle position sensor (TPS) and idle air bypass valve (ISC) have to be reset when throttle body, MAP, TPS, ISC or ECU has been reinstalled. Disconnect the ECU connector and remove the ECU from the frame. Installation is in the reverse order of the removal. Winker Relay Tilt Switch Horn Ignition Switch ECU Relay Lo Beam Relay Hi Beam Relay ECU Fuel Pump Relay 13-17