5. FUEL INJECTION SYSTEM MOVIE S 150i FI SYSTEM DIAGRAM No. DESCRIPTION ABBREVIATIONS (01) Electronic control unit ECU (02) Tilt switch (Angle detect sensor) ROLL (03) Fuel pump/Fuel level unit FP (04) Engine coolant temperature sensor ECT sensor (05) Crank position sensor (Pulsar) CPS (06) Oxygen/Oxygen heater sensor O2/O2 HT sensor (07) Air idle speed valve (Secondary air valve) EXAI (AICV) (08) Inductive ignition coil IG (09) Fuel injector (Nozzle) INJ (10) Intake pressure sensor MAP sensor (11) Idle air bypass valve ISC (12) Throttle position sensor TPS 5-2