Speed sensor
Parking sensor
Torque sensor
Pressure sensor
Auxiliary air valve
Air supply relay
Thermo time switch
Oxygen sensor
Indicate coolant temperature
Indicate engine RPM
Indictae fuel level
Indicate oil pressure
Increased thermal efficiency
Increased mechanical efficiency
Better starting and acceleration
Effective fuel distribution achived
Provide additional fuel during starting
Provide positive starting
Intake manifold
Determine timing and sequence of fuel injection