13. FUEL INJECTION SYSTEM Downtown 300i ABS INJECTION SYSTEM DIAGRAM No. FULL NAME ABBREVIATIONS (01) Electronic control unit ECU (02) Tilt switch (Angle detect sensor) ROLL (03) Fuel pump/Fuel level unit FP (04) Water temperature sensor WTS sensor (05) Crank position sensor (Pulser) CPS (06) Oxygen/Oxygen heater sensor O2/O2 Heat sensor (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 13-3