2009 Yamaha F40 Outboard Service Manual, Page 39Get this manual
Engine control system Sensor, switch and actuator Pulser coil TPS Air pressure sensor Air temperature sensor Oil pressure switch Thermo sensor Neutral switch Engine shut-off switch Fuel injector Ignition coil High-pressure fuel pump ISC valve Detects the engine speedDetects the crankshaft angle and the piston positionsDetects the throttle valve openingDetects the intake air pressureDetects the intake air temperatureDetects the oil pressureDetects the cooling water temperatureDetects the neutral positionActivates the engine stop function compulsorilyGives the optimum amount of fuel at the optimum timing based on the engine ECM command signalsActivates the ignition at the optimum timing based on the signals from the engine ECMPressurizes the fuel in the vapor separator, and delivers the fuel to the fuel railAdjusts the amount of intake air entering the engine at idle 0 7